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Erin Moriarty
Before we begin, just a trigger warning. The following episode contains references to graphic physical violence and suicide. Please listen with care.
Corporal Scott Allen
Hi, this is Corporalin. Hello, this is Corporal Allen. Who am I speaking with? I want to remain anonymous. Is that okay?
Erin Moriarty
For two months, police have relentlessly searched for the killer of Chip Northup and Claudia Maupin. Officers had interviewed the family and people who knew the couple. They'd set up a hotline to receive tips, but nothing had panned out. And then, late on the evening of June 15, 2013, 911 dispatch received an anonymous call. They transferred it to the Davis Police Department.
Corporal Scott Allen
Okay, what are you calling to report, sir? The double homicide that happened in April this year.
Erin Moriarty
To determine if the caller was a crank or not, Corporal Scott Allen asked the person to share details about the crime. And then he introduced the caller to Corporal Kerith Bresnik, who knew more about the continuing murder investigation.
Corporal Scott Allen
Would you mind kind of giving me the details of the information that you have? Yeah. The person who did it, he told me everything. He told me everything he did, step by step.
Erin Moriarty
The caller clearly knew a lot about the murders and had information that the police hadn't shared with the public or. Or even the victim's family.
Corporal Scott Allen
He told me he stabbed her in, like, the stomach area, like, 20 to 40 times. He was telling me he was just going at it, and. Well, he said he did that, and she was screaming.
Erin Moriarty
For weeks, the authorities have been looking at friends, family, anyone who had crossed paths with Claudia and Chip, trying to piece together who might have brutally murdered this beloved couple.
Corporal Scott Allen
I grew up with this person here in Davis. Yes. And I've known him. I knew him better than anyone else.
Erin Moriarty
But what this caller revealed was beyond anything they had imagined. The person the anonymous caller knew better than anyone else was named Daniel Marsh. He was 15 years old.
Corporal Scott Allen
He's. I think the word is psychotic. Basically, he's the kind of person that likes to see something hurt.
Erin Moriarty
I'm 48 Hours correspondent Erin Moriarty, and this is 15 Inside the Daniel Marsh Murders. Episode three a strange tip. After spending hours on the phone with police, the clearly nervous anonymous caller finally agreed to come down to the police station to talk in person.
Corporal Scott Allen
Can I get some water? Yes, please. Okay.
Erin Moriarty
The teenage tipster was Alvaro Garibe. He arrived at the station early the following morning. There, police led him into a small room and offered to grab him some snacks. Alvaro was skinny, with long black hair that was pulled up into a ponytail. He wore dark frame glasses. A camera in the room captured Alvaro as he nervously rubbed his Hands together and tapped on the table next to him until the officers came back into the room.
Corporal Scott Allen
How old are you? I'm 17. Okay. We just met. Do you mind spelling the name again?
Alvaro Garibe
A L V A R O.
Erin Moriarty
At first, investigators weren't sure what to make of Alvaro's phoned in tip. Given his intimate knowledge of the crime, they had to consider the possibility that he himself could have been involved. So they read him his rights.
Corporal Scott Allen
So you had your attorney? I found anything to say can be used against you in court of law. You understand? Yeah. Can't write to your attorney before and after any questioning. You can't afford one reappointed to you, no cost. Do you understand that? Okay, well, I don't really, but I've heard that tons of times on TVs.
Erin Moriarty
I later sat down with Alvaro Garabe in 2018, five years after Chip and Claudia were killed. Alvaro was then 22 years old with a full beard. They thought you were involved?
Alvaro Garibe
Yeah. Oh yeah. I mean I. I mean I retrospect, I totally get it. I mean I'm like some random kid saying that this person committed a crime. I'm like, you know, kind of freaked out at the time.
Erin Moriarty
The story that he had shared with the police still haunted him. The story of his once close friendship with a teenage boy named Daniel Marsh.
Alvaro Garibe
When I first met him, he was very shy and very quiet.
Erin Moriarty
Alvaro met Daniel in seventh grade at Holmes Junior High School. Both of them were lonely, self described outcasts who bonded over their mutual love of the heavy metal band Disturbed.
Alvaro Garibe
Like, we just hung out a lot.
Erin Moriarty
What would you do when you'd hang out?
Alvaro Garibe
Just like play video games and then just like watch music videos and go on YouTube. Like watch like the dumbest YouTube videos ever. And we just sit there and laugh for like hours, you know, like those like, like, like can't breathe kind of laughing.
Erin Moriarty
Alvaro said that he and Daniel became fast friends, almost family. Daniel would talk to him about his rocky home life. When Daniel was 10 years old, his parents separated and his mother had an affair with a woman. When his parents divorced shortly after, Daniel said he felt abandoned. Alvaro told me that the situation infuriated Daniel, who over time directed his anger at the woman that his mother was involved with.
Alvaro Garibe
He hated her, like absolutely. Because he would tell me that I know this woman was involved in my parents divorce and I just want to like strangle her to death. I remember him saying that to me.
Erin Moriarty
Did you think he was serious when he talked about wanting to kill her? No.
Alvaro Garibe
I mean, I knew okay, well, I kind of empathize. Cause I'm like, okay. I guess if this one. If there's a person, individual that was responsible for my parents divorce, I would hate them too, you know?
Erin Moriarty
But enough to kill them?
Alvaro Garibe
No. Well, he didn't kill her, but, you know, no.
Erin Moriarty
But he talked about it.
Alvaro Garibe
Talked about it, yeah.
Erin Moriarty
The conversations disturbed Alvaro, who. But he remained close with Daniel. In high school, they smoked marijuana together, played guitar, and watched YouTube videos. But eventually, Alvaro said, Daniel started spending hours watching very disturbing content videos of torture and beheadings. As I warned you earlier, what you're about to hear is disturbing.
Alvaro Garibe
There was this one torture video that really, like, hit me, that made me feel, like, more. More uncomfortable and more unsettled, which was a video of this person drowning somebody. They have like, a video of somebody like, you know, like a scarf on their face and just, like, putting them under a tub and just drowning them.
Erin Moriarty
Alvaro was upset by what he saw, but he said that Daniel seemed to enjoy the videos.
Alvaro Garibe
He just sat there, you know, just kind of like, whoa, what's going on? I think, like, fascinated by it.
Erin Moriarty
When we spoke, Alvaro explained that he thought Daniel's interest in violence and hurting people was just a way to de stress, not something he'd try to replicate.
Alvaro Garibe
That's how I took it. I never thought in reality, this person was actually going to go do something about it, you know?
Erin Moriarty
After Daniel's parents divorced, things became even more tense between Daniel, his parents, and his mother's new partner. According to Alvaro, Daniel, Daniel, then 14 years old, became fixated with his weight. How thin did he get? I mean, was it really a problem?
Alvaro Garibe
It's probably really thin. I think I have a couple photos of him and I hanging out, and he looks like bones.
Erin Moriarty
Daniel would starve himself for extended periods of time, and he regularly talked about death. And was he taking medications?
Alvaro Garibe
He was taking antidepressants.
Erin Moriarty
Did he talk about what was going on in his head and his thoughts?
Alvaro Garibe
He would tell me a lot about suicide.
Erin Moriarty
Daniel was sent to various therapists, according to Alvaro, and doctors tried to deal with his behavioral and health issues. In 2012, Daniel told a school guidance counselor that he fantasized about killing people. The counselor called police, who hospitalized Daniel because of the danger he posed to himself and others. When Daniel would go through these depressive episodes, writing became an outlet for him.
Alvaro Garibe
And he was like, yeah, I've been doing a lot of writing lately. And I was like, oh, cool. What are you writing? I was like, just stuff. And I was like, oh, okay. Like Lyrics. And I was like, nope. I was like, oh, okay.
Erin Moriarty
The police had shared with me pages copied from Daniel's personal journal from this time period, and I showed them to Alvaro.
Alvaro Garibe
You want me to go through this?
Erin Moriarty
Yeah. Tell me. Well, tell me why you say it's crazy stuff.
Alvaro Garibe
Because it's like. It's just random streams of consciousness. What the hell is this?
Erin Moriarty
Hard to read at all. That looks like someone with a gun.
Alvaro Garibe
Yeah, in his mouth.
Erin Moriarty
I pulled out one page that Alvaro had already seen. Daniel himself had shown it to him. The page was covered with drawings of skulls mixed with references to serial killers Ted Bundy and Jeffrey Dahmer, and song lyrics about sex and murder. This is kind of scary when you look at it.
Alvaro Garibe
Oh, my gosh. Like, you don't even. Okay. So when I first saw this, I didn't think too much about it. Now I'm, like, 22 looking at this. It blows my mind that I, like, didn't even, like, think about what, like, could happen.
Erin Moriarty
Another page was covered in expletives.
Alvaro Garibe
There's one that's like, kill, kill, kill.
Erin Moriarty
Daniel seemed able to keep much of that anger bottled inside. In high school, he and Alvaro dated girls, and they all started hanging out together as a group. But then, over time, Daniel's girlfriend also observed troubling behavior. She called Alvaro.
Alvaro Garibe
I remember her just being, like, kind of panicky and just very like, I don't think Dan's okay. You know, Like, I think he's, like, messed up or, like, he's got, like, something going on where he's like. He just, like, snapped at me.
Erin Moriarty
Some of Daniel's journal entries involved his girlfriend. And these ones didn't just talk vaguely about murder. They showed just how seriously Daniel was thinking about killing.
Alvaro Garibe
Okay, wow.
Erin Moriarty
What is that?
Alvaro Garibe
This is him planning to kill her ex boyfriend. He's writing I am ready.
Erin Moriarty
In his original interview with police, Alvaro described the weekend of April 13, 2013. It was the weekend of Alvaro's 17th birthday, the same weekend that Chip and Claudia were murdered. Alvaro spent the time playing video games. He went to guitar center with his family. His friend Daniel didn't join him, but he did invite Alvaro to hang out that Sunday to talk about something important.
Corporal Scott Allen
He said, I want to tell you something important.
Alvaro Garibe
Yeah.
Erin Moriarty
And.
Corporal Scott Allen
He told me he had a. He had an interesting night, and you wanted to talk about it.
Erin Moriarty
Alvaro said Daniel wanted to tell him about the interesting night he had had hours earlier.
Corporal Scott Allen
Like, he started off by, like, telling me that he killed two people. And then I told him, I don't want to hear about it. I want to know about it.
Erin Moriarty
According to Alvaro, Daniel said he killed two people. Alvaro didn't know what to make of what Daniel just told him, and he didn't want to hear any more, so he left. But Alvaro told me that the next day, Daniel still wanted to talk to him.
Alvaro Garibe
And then on Monday, I go to school, go to lunch, and I sit down with my friend group. Dan comes up to me, walks up to me, and he's like, hey, man, I need to talk to you. I'm like, oh, okay, what about? And I was like, just come with me. And then, like, brings me up to the side by locker room. And he's like, hey, man, I made the news. And I'm like, okay, what do you mean by that? You know, like, what do you mean you made the news? Oh, okay. Well, I'll just talk to you about it later.
Erin Moriarty
Later on in social studies class, someone told Alvaro about a story they had read in the newspaper. It was about a double homicide that had taken place over the weekend.
Alvaro Garibe
And I was like, oh, snap. All right. And then that's where everything kind of just like turns into a movie.
Erin Moriarty
Alvaro began connecting the dots. Later, he received a text from Daniel to come over to his house.
Alvaro Garibe
And then when I go to his room, like, you know, like, I just walk in, he's sitting on. On the. On his, you know, rolling chair, you know, by his computer. And I sat on the side of his bed. And then he starts telling me like, you know, he's like, so I actually did it. And then I don't like talking about this too much.
Erin Moriarty
I know, but tell me what. You can just describe what he told you he had done.
Alvaro Garibe
When he gave me, basically, I'd say, like, a rundown of what he did.
Erin Moriarty
And this is what Daniel told him. That on Saturday, instead of attending Alvaro's birthday celebrations, Daniel had put on all black clothing and a ski mask over his face. He told Alvaro that he had grabbed his mother's six inch hunting knife and then left his home in the darkness of the night.
Alvaro Garibe
He showed me the knife, the weapon.
Erin Moriarty
His shoes.
Alvaro Garibe
Yeah, his shoes.
Erin Moriarty
Daniel had thought of everything, Alvaro said, even wrapping the bottom of his boots in duct tape so he wouldn't leave.
Alvaro Garibe
Any footprints in his rundown. He told me how he broke into the house and then the entire act of killing those two people, like, step by step, like, every move.
Erin Moriarty
Did it seem real at that point? No.
Alvaro Garibe
No, Everything just didn't make any sense.
Erin Moriarty
And why did he do this? Why did he Tell you he was doing this?
Alvaro Garibe
I have no idea. I honestly, I think about that a lot.
Erin Moriarty
Did he seem proud of what he had done?
Alvaro Garibe
Yeah. Oh, yeah. He seemed very, like, content and, you know, took a lot of. I mean, it sounded like he took a lot of pleasure out of it.
Erin Moriarty
Did you get the impression he was kind of bragging to you about what he had just done?
Alvaro Garibe
Yeah, he was chuckling. He was laughing about, you know, putting inanimate objects in their body.
Erin Moriarty
The details were so upsetting to Alvaro, so difficult to absorb. He didn't know how to respond to Daniel's story.
Alvaro Garibe
I felt like throwing up. I felt like I couldn't feel anything. Felt very numb, and I just walked out. My head's just running, spinning. And then I'm, like, looking at the door, and I'm like, oh, my gosh. Like, I need to get out of here. And, like, I had this feeling that the police are gonna break in here, and I'm, like, shaking. Welcome to Radio Rental. The scariest stories you've ever heard in your life, all told by real people.
Erin Moriarty
And off we go.
Alvaro Garibe
This wasn't a human being that I saw. There's something here in this house, something out of this world. There was a woman moving through the hall. I stepped back, and I was completely, completely alone. Radio Rental is available now Listen for free on Apple Podcasts, Spotify, or wherever you get your podcasts.
Erin Moriarty
Alvaro had told me that he was shaking and he felt like throwing up after hearing Daniel confess to the crimes. But still, Alvaro didn't immediately go to the police. You knew he had just killed two people. Why didn't you tell anybody?
Alvaro Garibe
I don't know.
Erin Moriarty
But you knew he might hurt somebody else.
Alvaro Garibe
It was just like one of those things that you just kind of. I just wasn't facing it.
Erin Moriarty
So help me understand why not the two of you know, both of you, you both know.
Alvaro Garibe
Okay, you're in high school. How do you. How do you approach this?
Erin Moriarty
You call the police?
Alvaro Garibe
Yeah, well, I mean, that's. Obviously, that's easier said than done. I'm, like, freaking out about what's going to happen. What if I call the police? How's that. How's this going to affect me? Is this going to follow me on my whole life? You know, Is there any way I can do this? Anonymous.
Erin Moriarty
After Daniel told Alvaro about the murders, Alvaro was too scared to go to the police. But the one thing he did do was cut off all contact with Daniel.
Alvaro Garibe
That's when I stopped talking to him, stopped texting him. I told him I needed space. Hey, man. Like, hey, like, I just. Like, I need a moment, man. Like, I can't just, you know, I didn't. I tried my best to not let him feel like I was disowning or, like, you know, making him feel like you're unfriending him. Tried my best. I was just like, hey, man, like, I just need space, you know, Like, I didn't tell him why.
Erin Moriarty
He didn't want to call the police at first. Instead, Alvaro said he reached out to Daniel's father, Bill.
Alvaro Garibe
And, you know, I text him. I was like, hey, man, Daniel was involved with that, with the double homicide. I don't know what to do. I'm thinking about calling the police. Something along the lines of that.
Erin Moriarty
Bill and Alvaro's accounts of this differ, but according to Alvaro, Bill was stunned by the accusation and refused to believe that Daniel could have committed such a crime. And so Dan's dad said, you're overreacting. He wouldn't do this. Yeah, he didn't believe you.
Alvaro Garibe
I mean, it's his son, and it's just like, no, of course he didn't believe me, you know?
Erin Moriarty
So Alvaro kept his mouth shut and tried to go on with his life while police began investigating the murders. But a few weeks later, Daniel approached him at school.
Alvaro Garibe
He came up to me, and he was like, dude, like, what. What are you doing? Like, you know, like, how come you're not talking to me? Like, why are you. And I told him, I just. I remember having just, like, this, like, public, you know, just, hey, man, I don't want to be your friend. You know, like, don't talk to me. And then, you know, he just, like, starts yelling at me, and I'm like, yeah, whatever. And I just, like, walk out of the school.
Erin Moriarty
At that point, Alvaro had become scared of Daniel, fearful to be around him. He knew that Daniel regularly carried a knife around, so he told a guidance counselor that Daniel had one. And at school, Alvaro said that got Daniel expelled. Afterwards, Daniel wasn't supposed to return to the campus, but he did. And while there, he approached Alvaro again.
Alvaro Garibe
And he's just, like, threatened to, like, attack me if I don't, like, you know, talk to him. He wants to know what's going on. Why is he. Well, why am I not speaking to him? You know, that's basically it. And I just kind of, like, freaked out and, like, ran.
Erin Moriarty
Soon after, Alvaro was on the phone with Daniel's girlfriend, and suddenly she started.
Alvaro Garibe
Panicking, and she's like, hey, I think. I think someone's in my house, you know, because she hears noises in the backyard. And she's like, I gotta go. And she hangs up, right? She texted me. Dan just broke into my house. I'm like, how do you get in? I'm like, through the doggie door. And I'm like, whoa. Okay. I'm, like, freaking out now. I'm, like, panting in my room, like, I gotta do something. What am I gonna do? What am I gonna do?
Erin Moriarty
And that's when Alvaro grabbed a phone, called 911, and became that anonymous caller that. That you heard at the top of the episode. Over the course of several more phone calls, he was eventually connected with corporals Scott Allen and Kerith Bresnik. Alvaro didn't want to give them his name, but eventually he became more comfortable and started calling Corporal Bresnik kb.
Alvaro Garibe
Officer kb. She's very nice, and she was like, okay, well, in order for me to follow up with you, I need you to actually give me your name. And I'm like, okay, all right, I'm gonna come over to your house, and we're gonna talk about this. And I'm like, it's like two in the morning. I'm like, okay, gotcha. And she comes over, then we have a chat, and then she takes me to the police department.
Erin Moriarty
Alvaro spent hours with police in that interrogation room. He told them about what Daniel had confessed to him about his actions on the weekend of April.
Corporal Scott Allen
He told me he got duct tape to put it under his shoe. So then you guys wanted to, like, find footprints or shoe prints or something like that? He went there. He went to the back of the house.
Erin Moriarty
It was the first real break in the case. Investigators had closely guarded the details of Chip and Claudia's murders. And now inside that interrogation room, Alvaro was sharing gruesome details from the crime scene.
Corporal Scott Allen
You cut both of them open just to see the insides or something?
Erin Moriarty
Alvaroa told the investigators everything. He knew the police were going to allow him to go home, but first, they wanted to try something. They asked Alvaro if he could call Daniel and ask him about the murders while police recorded the call.
Corporal Scott Allen
Going back to a possible phone call.
Alvaro Garibe
Or talking to Dan.
Corporal Scott Allen
Yeah, I can do that.
Erin Moriarty
Alvaro tried contacting Daniel, but Daniel didn't answer any calls or texts. And that's when investigators decided it was time to bring Daniel Marsh in for questioning.
Alvaro Garibe
That you were there.
Corporal Scott Allen
That you did those murders.
Alvaro Garibe
Me? Mm.
Corporal Scott Allen
That's ridiculous. Why is it ridiculous? I'm a kid.
Erin Moriarty
Coming up next on 15, inside the Daniel Marsh murders. This series was reported by me Erin Moriarty. Alan Peng is our producer. Maura Walls is our story editor, and Jamie Benson is the senior producer. Meghan Markus is the vice president of podcast editorial for CBS. Special thanks to 48 Hours executive producer Judy Tygard, along with 48 Hours producers Judy Ryback, Stephanie Slifer and Greg Fisher from Goat Rodeo. This podcast was written and produced by Kara Schillen, Max Johnston, Jay venables, Isabel Kirby McGowan, Megan Nadolsky and Ian Enright. Additional reporting and recording by Kara Schillen. Our executive producers at Goat Rodeo are Megan Nadolsky and Ian Enright. Original theme and music by Hans Del she with additional music from Paramount. Final mix by Rebecca Seidel. Fendel Fulton is our fact checker. Our production manager is Kara Schillen. I'm Erin Moriarty. If you're enjoying this show, be sure to give it a rating and review. It helps more people find it and hear our reporting. If you liked 15 inside the Daniel Marsh Murders, check out the rest of our 48 Hours podcasts by searching 48 Hours on your favorite podcast app. Thanks for listening. Paramount plus is the new home of ufc. It isn't just combat, it's cinema.
Alvaro Garibe
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Erin Moriarty
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Alvaro Garibe
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Erin Moriarty
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Alvaro Garibe
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Erin Moriarty
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Alvaro Garibe
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Erin Moriarty
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Alvaro Garibe
There's never been a better time to enroll in Star Trek.
Erin Moriarty
Our job to prepare you for the unimaginable. To the Night Cadet.
Alvaro Garibe
In high pressure situations, positive reinforcement is crucial to one's success. You're doing a great job. This is what we train for.
Erin Moriarty
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Alvaro Garibe
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Erin Moriarty
Starfleet Academy new series streaming January 15th on Paramount.
Date: December 31, 2025
Host: Erin Moriarty (CBS News)
In this episode of “48 Hours,” correspondent Erin Moriarty delves into the mysterious break in the case of Chip Northup and Claudia Maupin’s brutal 2013 double homicide. The episode focuses on the unexpected and harrowing tip that cracked the investigation open: a call made by a teenager, Alvaro Garibe, implicating his former friend, 15-year-old Daniel Marsh. Through interviews, recorded calls, and firsthand testimony, the episode explores the chilling circumstances, the psychological landscape of Marsh, and the immense burden carried by the tipster.
“I mean, I retrospect, I totally get it. I mean I’m like some random kid saying that this person committed a crime… I was kind of freaked out.”
– Alvaro Garibe (05:29)
“It blows my mind that I… didn’t even think about what… could happen.”
– Alvaro Garibe, reflecting years later (11:59)
“He seemed very, like, content and… it sounded like he took a lot of pleasure out of it.”
– Alvaro Garibe (18:00)
“He was chuckling… laughing about putting inanimate objects in their body.”
– Alvaro Garibe (18:13)
Alvaro on Daniel’s demeanor:
“He seemed proud of what he had done? … Oh, yeah. He seemed very, like, content and, you know, took a lot of… pleasure out of it.” (18:00)
Alvaro on the confrontation with police:
“I mean, I retrospect, I totally get it. I mean, I’m like some random kid saying that this person committed a crime… I was kind of freaked out at the time.” (05:29)
Alvaro’s numbness:
“I felt like throwing up. I felt like I couldn’t feel anything. Felt very numb, and I just walked out.” (18:31)
Host Erin Moriarty challenging Alvaro:
“You knew he might hurt somebody else… Why didn’t you tell anybody?” (19:50)
“A Strange Tip | Fifteen” offers a chilling and intimate look at the unraveling of a horrific case from inside the personal world of a teenage tipster. The episode thoughtfully navigates the emotional and psychological turmoil experienced by both Daniel Marsh and Alvaro Garibe, exposing the complexities of friendship, mental health, and moral responsibility. Through candid interviews and a careful reconstruction of events, “48 Hours” shines a light on how one hard decision can crack the darkness surrounding even the most confounding crimes.