Criminally Obsessed – "New Celeste Murder Details: Crime Scene Investigator's Unfiltered Analysis"
Date: May 7, 2026
Host: Anne Emerson
Guest: Cheryl "Mac" McCollum (Crime Scene Investigator)
Episode Overview
In this deeply affecting episode, Anne Emerson sits down with seasoned crime scene investigator Cheryl “Mac” McCollum to dissect the harrowing new details in the Celeste Rivas Hernandez murder case, focusing on the latest document drop and evidence presented at the preliminary hearing. The episode explores not just the forensic angle—such as disturbing details around evidence collection, crime scene logistics, and offender psychology—but also broader social failures that allowed such a tragedy to occur. Mac provides granular, no-nonsense insight and doesn't shy away from the complicated, uncomfortable truths underlying Celeste's murder. Throughout, the tone is frank, empathetic, and investigative.
Key Discussion Points & Insights
1. Blue Plastic Evidence—Crime Scene Analysis
[00:00–00:41]
- Anne and Mac open by discussing the discovery of blue plastic bits in Celeste's body, which were ultimately traced to an inflatable pool police say David used during dismemberment to contain blood.
- Mac makes a vivid analogy:
"Imagine if you’ve ever mixed batter… it just kind of goes everywhere. It is not going to be contained in that little pool." [00:23, Mac]
2. Delayed Arrest and Case-Building
[01:13–02:31]
- Main Point: There was a significant delay (from September to April) between Celeste’s body being found and David’s arrest.
- Mac's insight: Authorities took their time to build a rock-solid case, monitoring David, possibly restricting his travel.
“Being arrested faster doesn’t make your case better. So I think they did the right thing.” [02:23, Mac]
3. Key Early Evidence and Red Flags
[02:47–04:55]
- Investigators prioritized retrieving Celeste’s phone and records to establish a timeline and suspect list.
- Mac explains the importance of what suspects don’t do, e.g., David did not alert Celeste’s family when she disappeared.
“What somebody does is real important, but what they don’t do is equally as important.” [03:32, Mac]
- Anne raises that David sent fake texts after Celeste's disappearance.
4. The Circle of Knowledge & Culpability
[05:08–08:35]
- Mac details the troubling timeline and the impossibility that David’s entourage and associates were unaware of the illegal relationship.
- Sharp commentary on adult accountability:
“You want to know a girl is 13, talk to her. Look at her… you can’t be around somebody 13, much less 11, and not realize…” [05:28, Mac]
- Discussion of how a minor could travel internationally with an adult—requiring permissions, raising serious questions about adult enablers.
5. The Grooming Process and Evidence of Predation
[08:30–12:48]
- Mac is blunt about David’s conduct, labeling it for what it is: systematic grooming.
- The significance of the yearbook photo and how David kept evidence of Celeste's age.
"He met her in person at 11. And keep in mind he’s got child pornography in his phone. This is his thing." [08:59, Mac]
- They discuss the role of online grooming and how David accessed Celeste through youth-targeted channels.
6. Premeditation and Motive
[10:10–12:20]
- Anne and Mac examine the charge of premeditation, focusing on evidence that Celeste had threatened to expose David’s abuse:
“She says in a text message to him, I’m basically going to out you as a pedophile and ruin your career. He was never going to let that happen... She had proof in her phone.” [10:36, Mac]
- David canceled his world tour immediately after the murder, an important clue to his state of mind.
7. Control, Secrecy, and Technology
[12:48–14:41]
- Unpacking how David maintained control—buying a school friend off to give Celeste a burner phone.
- Mac explains: "This is somebody that's going to control the situation however he can. That was an easy step…" [12:48, Mac]
- Despite burner phones, incriminating data was found on David’s devices; Mac marvels at David’s lack of caution:
"He had child porn all over it still. He put a dead body in his own trunk and then left the car somewhere and never reported it stolen. I mean, yeah, I think he's pretty stupid, but thank God." [14:41, Mac]
8. Dismemberment, Timeline, and Forensic Realities
[14:41–19:51]
- Mac details the physical timeline: David killed Celeste (April 23rd), waited days (May 1st ordered chainsaws, May 5th bought body bags), and kept the body in the house decomposing for almost two weeks.
- Anne explores the physicality and logistics—how could the smell be masked? Mac clarifies:
"There was be no way you could walk in that house and not know it." [16:10, Mac]
- Discussion of the inadequacy of the inflatable pool to contain the mess; forensic evidence left behind.
9. The Tesla—A Silent Witness
[17:54–21:31, 26:55–28:19, 39:49]
- Mac highlights how the Tesla’s surveillance capabilities and black box data will play a pivotal evidentiary role.
"That Tesla is going to be one of the best witnesses of this whole thing." [01:00, Mac]
- David is seen on surveillance repeatedly, even as the car contains Celeste’s remains.
- Tesla recorded David dropping evidence, even as he continued to drive with the body in the trunk.
10. The Psychology of Control and Obsession
[21:31–26:49]
- Mac identifies an obsessive pattern—David continued to visit the spot where he dropped Celeste’s ID but not her body. Anne and Mac agree this is about ongoing control, even after death.
“Again, she is who he wants to control. So he’s not giving her up, dead or not. I’m going to keep her in my car… keep her in my house, decomposing.” [24:43, Mac]
11. Systemic and Adult Failures
[05:14–08:20, 33:20–38:48]
- The discussion returns several times to who, besides David, should be called to account:
- Adults who allowed unsupervised travel.
- The tattoo artist who inked Celeste with David’s name.
- Teachers, school officials, and others who failed as mandated reporters.
- Mac says:
“Almost every adult in her life failed her.” [38:35, Mac]
12. The Forensic Gaps and Remaining Mysteries
[28:19–33:02]
- Anne asks if Celeste’s pregnancy can be proven—Mac replies decomposition makes this impossible, though witness testimony might surface.
- The missing finger: Celeste’s ring finger, with the “David” tattoo, was cut off and has not been found—a potent symbol of the control dynamic.
13. Building a Rock-Solid Prosecution
[34:48–36:02, 39:08–40:00]
- Mac expresses confidence that the case is strong:
“We got child porn in his phone. We’ve got… you were driving a Tesla on July 19 with a dead body that you had to know was in the trunk… Solid case right now. Solid.” [34:48, Mac]
- Ongoing investigation will focus on adding culpable adults to the witness list and clarifying who enabled Celeste’s abuse and movement.
Notable Quotes & Memorable Moments
- "You want to know a girl is 13, talk to her. Look at her… you can’t be around somebody 13, much less 11, and not realize…" — Mac [05:28]
- "He had child porn all over it still. He put a dead body in his own trunk and then left the car somewhere and never reported it stolen. I mean, yeah, I think he's pretty stupid, but thank God..." — Mac [14:41]
- "There was be no way you could walk in that house and not know it." — Mac [16:10]
- "There is so much time. The timeline must have driven investigators crazy." — Anne [01:13]
- "Almost every adult in her life failed her." — Mac [38:35]
- "This should not be. Well, why are they going after the death penalty?... Why in the world are they not?" — Mac [23:49]
- "She says in a text message to him, I’m basically going to out you as a pedophile and ruin your career. He was never going to let that happen." — Mac [10:36]
- "Of all tattoos… her tattoo. Yeah, it’s his name, his artist name… That’s what he cuts off with her ring finger." — Mac [30:53]
- "He never got rid of her, Mac" — Anne [34:37]
- "That Tesla, man, that’s gonna be a good witness. From the black box to the video. It’s gonna nail him." — Mac [39:49]
Timestamps for Key Segments
- 00:00–01:11 – Introduction; blue plastic pool detail and dismemberment evidence
- 02:03–03:41 – Reason for delayed arrest and importance of timeline
- 05:14–08:35 – The larger circle: adults who knew about the illegal relationship
- 10:10–12:48 – Pre-meditation, threats, cancellation of career moves
- 14:03–16:32 – Forensics: holding and managing the body, odor and evidence
- 17:54–19:51 – Crime scene logistics: the pool, spatter, embedded plastics
- 21:31–26:49 – Psychological obsession, control—David’s repeated returns to crime scene evidence drop sites
- 28:19–33:00 – Missing forensic evidence (pregnancy, the tattooed finger); control dynamics
- 34:48–36:02 – The case against David: why the prosecution is strong
- 38:35–39:47 – Systemic adult failures; building the case, the role of witnesses
- 39:49–40:00 – The Tesla’s pivotal evidentiary role
Concluding Reflections
The episode concludes on a sobering note regarding justice for Celeste Rivas Hernandez, laying bare the compounding failures—personal, institutional, societal—that allowed abuse and murder to occur. Mac repeatedly returns to the necessity for the case to be prosecuted with full transparency and impact, ensuring the realities of predation, systemic neglect, and the horror of the crime are not minimized for jury or public.
Last word:
"Almost every adult in her life failed her." — Mac [38:35]