
Hey Dateline fans! As a bonus, we’re giving you a special preview clip of our new podcast series, Trace of Suspicion. After seemingly healthy 23-year-old Marine Todd Sommer dies unexpectedly, his widow Cindy’s lavish spending, cosmetic surgery, and wild partying raise investigators’ suspicions. They accuse her of poisoning him with arsenic for his life insurance, setting off a criminal case that takes a stunning turn... Josh Mankiewicz sits down with the woman at the center of it all in Dateline’s newest podcast. If you like what you hear, just search Trace of Suspicion to listen to the first two episodes now, completely free. Or subscribe to Dateline Premium on Apple Podcasts, Spotify or DatelinePremium.com. Subscribers get early access to new episodes and can listen to all Dateline podcasts ad-free.
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Josh Mankiewicz
Hey, it's Josh Mankiewicz from Dateline with a special preview of my new podcast called Trace of Suspicion. Death comes for us all eventually. We can never know exactly when, where or how. What is known is that the Grim Reaper is always out there waiting, checking our names against a list. Like some bill collector on commission. United States Marine Sergeant Todd Summer had every reason to think his appointment with death was still decades away. After all, he was only 23. Except sometimes the years don't matter. As he got ready for bed that night in February 2002, the Reaper was watching. Todd had been battling some kind of bug for more than a week. Nausea, diarrhea, stomach pains, chills, fever, the full menu of misery. The doctors at the Miramar Marine Base in San Diego thought this might be food poisoning. Maybe that gas station egg roll he had eaten. We do not know how much sleep Todd Summer actually got that night. We do know that at about 1:30 in the morning, his wife Cindy was awakened by the sound of her husband gasping for breath.
Cindy Summers
He got up and he walked towards the bathroom and turned around and just looked at me and like, just couldn't catch his breath.
Josh Mankiewicz
Years later, the memory of that night is still fresh for Cindy.
Cindy Summers
I went over to him, I'm like, what's the matter? He just looked at me and he said, I'm all right, I'm okay. I'm fine. And then he just fell down and I just kind of freaked out.
Josh Mankiewicz
Come on. That is Cindy back in 2002 on the phone to 911. 911, do you have allergic?
Unidentified Caller or Interviewee
What happened to class?
Josh Mankiewicz
What happened?
Unidentified Caller or Interviewee
He just classed. He will let him come in class, okay?
Josh Mankiewicz
The panic don't always come on the way right now. Cindy remembered the basics of CPR from her days as a swimmer in middle and says she did what she could.
Cindy Summers
I'd never done it before other than on a dummy. So I really wasn't sure the exact sequence of how things should go.
Josh Mankiewicz
A platoon of paramedics, EMTs and cops were only minutes away. But by then it seemed the Grim Reaper had her husband in a death embrace.
Cindy Summers
Then police and fire got there and it was just. They had taken me out of the room and it was just all a blur from there.
Josh Mankiewicz
This story is about the why and the how of Todd Summers death that night. What?
Unidentified Caller or Interviewee
I love you. I'm gonna be me. Why am I gonna steal you?
Josh Mankiewicz
It is about the wife he left behind and the questions that have persisted for more than 20 years.
Cindy Summers
Well, we learned that they had some money issues.
Josh Mankiewicz
It is a story about private and public shame.
Unidentified Caller or Interviewee
She started having a lot of people over and a lot of parties shortly after his funeral.
Cindy Summers
I understand everybody says it's the sex. We understood how it doesn't look good. The experts say that people do some pretty strange things in their grieving.
Josh Mankiewicz
And it is the story about investigators who found reasons to believe Todd Summers sudden death was really a cold and calculated case. This was really strange for a 23 year old, seemingly healthy Marine to die. So why don't we run one more test? Because poison could have been an option here. I'm Josh Mankiewicz. Thanks for listening. Search for Trace of Suspicion to hear the full episode now.
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Episode: Dateline Presents: Trace of Suspicion
Date: March 10, 2026
Host: Josh Mankiewicz (Dateline Correspondent), with interview clips from Cindy Summers and others
In this specially previewed episode, Josh Mankiewicz introduces listeners to the haunting and mysterious death of United States Marine Sergeant Todd Summers in 2002. At only 23, Todd’s sudden passing raises suspicions, leading to a complex investigation interwoven with grief, rumors, and questions that have persisted for over two decades. The episode promises a real-life whodunit, exploring not just the circumstances of Todd’s death but the rippling impacts on his wife, Cindy Summers, and the broader social circles involved.
"Death comes for us all eventually... Like some bill collector on commission."
(Josh Mankiewicz, 00:03)
"He got up and he walked towards the bathroom and turned around and just looked at me and like, just couldn't catch his breath."
(Cindy Summers, 01:32)
"I'd never done it before other than on a dummy. So I really wasn't sure the exact sequence of how things should go."
(Cindy Summers, 02:25)
"Then police and fire got there and it was just. They had taken me out of the room and it was just all a blur from there."
(Cindy Summers, 02:47)
"This was really strange for a 23-year-old, seemingly healthy Marine to die. So why don't we run one more test? Because poison could have been an option here."
(Josh Mankiewicz, 03:39)
"She started having a lot of people over and a lot of parties shortly after his funeral."
(Unidentified Interviewee, 03:24)
"I understand everybody says it's the sex. We understood how it doesn't look good. The experts say that people do some pretty strange things in their grieving."
(Cindy Summers, 03:29)
This preview offers a tantalizing glimpse into the episode’s push-and-pull between grief, gossip, and investigation. The full episode of "Trace of Suspicion" promises detailed forensic and legal insights, in-depth interviews, and Dateline’s characteristically thorough reporting. Listeners can expect a careful unpacking of a case that’s as much about community perception and personal loss as it is about the facts of the crime itself.