Jealous Boyfriend Kills Girlfriend's New Lover And Thinks Cops Believe His Lies

October 7, 2026

AI Summary

5 min read

On June 22, 2022, in Kent, Washington, police questioned Kyle Michael McCulloff about the death of David Agueo, who had been stabbed multiple times. The interview, which forms the core of this episode, is a slow, methodical dismantling of McCulloff's story—a story he insists is about a tragic accident between friends that spiraled out of control.

The Suspect's Account: An Accident Between Friends

McCulloff tells investigators a detailed, almost rambling story. He explains that he was in a ten-year relationship with his girlfriend, Lizzie, who had recently slept with David. Despite the betrayal, McCulloff says the three of them, along with another friend named Cliff, had talked it through and were trying to move past it. On the morning of the killing, McCulloff says he dropped Lizzie at work, then returned to Cliff's apartment, blasting music from a boombox. He claims he didn't know David was still there, asleep on the couch.

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What you'll learn

1 (01:05) **Case Introduction** - The host sets up the case: On June 22, 2022, Kyle Michael McCulloff is questioned about the death of David Agueo, who died from multiple stab wounds.
2 (03:11) **The First Denial** - McCulloff denies knowledge of the evidence and claims confusion, while the detectives press him on his presence at the apartment.
3 (04:30) **Feigning Shock at David's Death** - McCulloff acts surprised and upset upon being told David is dead, but the detectives insist on his involvement.
4 (06:49) **Building the Timeline** - The detectives guide McCulloff through the morning of the murder, trying to establish a clear sequence of events.
5 (14:36) **The Mentorship Dynamic** - The interview shifts to McCulloff's relationship with Cliff, revealing Cliff as a calming influence and a mentor figure.
6 (26:39) **The Rage and Violence of the Crime** - The detective describes the extreme violence of the murder, focusing on the rage and the specific nature of the wounds.
7 (33:38) **McCulloff's Account of the Fight** - McCulloff begins his narrative of the accidental fight, starting with how he met David and how the conflict began.

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Show Notes

This police interview concerns the death of David Aguayo and includes investigators’ questions about evidence and the events surrounding his death. McCullough describes a fight with Aguayo and gives his account of what happened afterward.

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