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Trace Evidence

Trace Evidence

Steven Pacheco 287 Episodes Sep 29, 2026

Trace Evidence is a weekly true crime podcast focusing on unsolved cases, including murders and missing persons. Host Steven Pacheco examines each case in depth, exploring the evidence and theories surrounding them. The podcast highlights the plight of victims and their families seeking answers, while aiming to uncover the truth behind these mysteries.

Episodes

UPDATE - The Tylenol Murders
UPDATE - The Tylenol Murders Sep 29, 2026 1478 In September of 1982, seven people in the Chicago area died after ingesting over-the-counter Tylenol capsules that had been laced with lethal doses of potassium cyanide before being placed on store shelves.  Although there was a massive investigation and multiple people were closely examined, no one has ever been charged with the hideous crime.Three months after the murders, an unknown man walked
258 - Bumble Bee Murders - Brandon Rumbaugh & Lisa Gurrieri
258 - Bumble Bee Murders - Brandon Rumbaugh & Lisa Gurrieri Sep 19, 2026 5619 In October of 2003, twenty year old Brandon Rumbaugh and his girlfriend, nineteen year old Lisa Gurrieri wanted to find a special way to celebrate their one year anniversary.  When a trip to Disneyland was too costly, they decided to stay close to home.  The couple decided to camp out beneath the stars in a small area north of Scottsdale, Arizona called Bumble Bee.  Tucked into the Bradshaw mounta
257 - The Disappearance of Jerry Wolking
257 - The Disappearance of Jerry Wolking Jul 23, 2026 4889 Jerry Wolking was worried, but nobody knew why.  He was fidgety, pacing and didn't want to talk about what was on his mind.  Days later, her mysteriously disappeared after leaving his girlfriend's house.  He has never been seen again.For decades his case grew cold, leaving behind family and friends who searched and did everything they could try and keep his story alive but the silence was all cons
UPDATE - The Sundrop Murders - Arrest Made [Ep 114]
UPDATE - The Sundrop Murders - Arrest Made [Ep 114] Jun 9, 2026 1355 On Friday, June 13th, 2008, just before 10 AM, an unknown assailant entered the Sundrop Bottling Company building in Concord, North Carolina.  Inside were three employees including office manager Donna Barnhardt as well as Darrell Noles, a local man applying for a part-time job.  During what police have called a robbery gone wrong, both Donna and Darrell were shot and killed.  The shooter then wal
256 - Melanie Flynn - Part 2
256 - Melanie Flynn - Part 2 Jun 5, 2026 4574 In part 2 we examine the greater conspiracy surrounding the Vanishing of Melanie Flynn.  Lexington Police Officer Bill Canan, who claimed to be using Melanie as a confidential informant for his undercover work in the drug scene is fired from his job for a multitude of reasons related to insubordination.  Canan denies any involvement in Melanie’s disappearance or in any illegal activities.  However
256 - The Vanishing of Melanie Flynn - Part 1
256 - The Vanishing of Melanie Flynn - Part 1 Jun 5, 2026 5113 On January 26th, 1977, twenty-four year old Melanie Flynn walked out from her Lexington, Kentucky job, climbed into her red, Ford Elite and drove off into the unknown.  She has never been seen again.  Immediately in the aftermath of her disappearance her father, former state senator Bobby Flynn, reached out a friend and police officer for help.  He didn't expect the response he received.The Police
SOLVED - The Murder of Jennifer Persia [Ep 153]
SOLVED - The Murder of Jennifer Persia [Ep 153] Apr 14, 2026 1555 Sixteen year old Jennifer Persia had everything going for her. She played saxophone in the school band, was on the color guard and was becoming a breakout athlete. As a freshman, she was on the varsity track team and medaled in a competition against mostly seniors.Then one quiet, Monday night, someone stole away everything she hoped to be, shattered a family and rocked a small town. On April 4th,
255 - The Murder of Maggie Long
255 - The Murder of Maggie Long Mar 14, 2026 6644 On Friday, December 1st, 2017, seventeen year old Maggie Long finished up her day at school and drove home to pick up refreshments for a concert that night.  She never returned.  Hours later, firefighters and sheriff's deputies responded to a call about intruders and a fire at her family home.  There, in the scorched husk of the home, they found Maggie's body.Maggie was a beacon in her community,
254 - The Vanishing of Joseph Helt
254 - The Vanishing of Joseph Helt Feb 12, 2026 4975 In January of 1987, seventeen year old Joseph Helt mysteriously disappeared after leaving a high school party.  When his close friend wasn't able to give him a ride, Joe had to hop in with three other guys and though they all made it home, he never did.According to his companions that night, their car got stuck in a ditch and Joe, frustrated and tired, decided to walk the five miles home in 8 degr
Q&A Plus 2026 Preview
Q&A Plus 2026 Preview Feb 2, 2026 3757 In this special Q&A episode, host Steven Pacheco answers questions submitted by listeners about the show, cases and everything in between.  Following the Q&A section, we enter the 2026 preview discussing plans to return to weekly episode releases and plans beyond that.  Get involved with Trace Evidence, reach out with your ideas, questions and inspirations.  Visit Trace-Evidence.com for mo
253 - The Disappearance of Sandra & John Jacobson
253 - The Disappearance of Sandra & John Jacobson Jan 18, 2026 6363 On Saturday, November 16, 1996, thirty-six year old Sandra Jacobson and her five year old son, John, went mysteriously missing from Bismarck, ND.  After arriving late for dinner at her parents home, Sandy left to fill her gas tank and never returned.  Neither she nor John have been seen again.The following morning her car was found abandoned in a parking lot adjacent to the Missouri River, which w
252 - The Murder of Tammy Mahoney
252 - The Murder of Tammy Mahoney Dec 20, 2025 6323 On Friday, May 8th, 1981, nineteen year old Long Island native Tammy Mahoney left her Oneida, New York apartment to visit friends twenty miles away in the town of Hamilton.  She never arrived and her case was investigated as that of a missing person.Twenty years later, in May of 2001, law enforcement officials announced that witnesses had come forward stating that on the night of her disappearance

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