Trace Evidence
Trace Evidence is a weekly true crime podcast that focuses on unsolved cases, from chilling murders to missing persons. Join host Steven Pacheco as he examines each case, diving deep into the evidence and exploring the theories which revolve around them. For each unsolved case, there are the victims and their families, who want answers and the abductors and murders who hide the truth. Follow Us on Social Media | Learn More Become a supporter of this podcast: https://www.spreaker.com/podcast/trace-evidence--3207798/support.
Episodes
September 29, 2026 • 24 mins
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 into a Catholic church...
Three months after the murders, an unknown man walked into a Catholic church...
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September 19, 2026 • 93 mins
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 mountains and just a few m...
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July 23, 2026 • 81 mins
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 consuming. ...
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 consuming. ...
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June 9, 2026 • 22 mins
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 walked out of the build...
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June 5, 2026 • 76 mins
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, his partner,...
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June 4, 2026 • 85 mins
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 weren't all...
The Police weren't all...
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April 14, 2026 • 25 mins
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, 1994, an unknown killer, or...
Then one quiet, Monday night, someone stole away everything she hoped to be, shattered a family and rocked a small town. On April 4th, 1994, an unknown killer, or...
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March 13, 2026 • 110 mins
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, a brilliant ...
Maggie was a beacon in her community, a brilliant ...
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February 12, 2026 • 82 mins
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 degree weather without a c...
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 degree weather without a c...
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February 2, 2026 • 62 mins
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 more informati...
Visit Trace-Evidence.com for more informati...
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January 18, 2026 • 106 mins
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 was nearly frozen ...
The following morning her car was found abandoned in a parking lot adjacent to the Missouri River, which was nearly frozen ...
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December 20, 2025 • 105 mins
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, Tammy was taken to a...
Twenty years later, in May of 2001, law enforcement officials announced that witnesses had come forward stating that on the night of her disappearance, Tammy was taken to a...
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November 4, 2025 • 90 mins
Trace Evidence relaunches with the story of Judy Martins. Twenty-two year old Judy Martins was a bright and talented student attending Kent State University in Kent, Ohio. During the early morning hours of Wednesday, May 24th, 1978, Judy donned a silly red wig and visited multiple buildings on campus to hang out and joke around with friends.
At approximately 2:30 AM she left Dunbar Hall to go back to her r...
At approximately 2:30 AM she left Dunbar Hall to go back to her r...
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August 28, 2025 • 78 mins
Sunday, May 25th, 1980 -- Kokomo, Indiana. Twenty-nine year old special education teacher Janet Shirar doesn't show up for a pre-planned family gathering and birthday party for her nephew. After multiple calls to her apartment go unanswered, her mother, stepfather and friend arrive to check on her. They find her car in the parking lot, the door slightly ajar and her apartment cloaked in darkness.
Entering, ...
Entering, ...
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July 24, 2025 • 50 mins
In this week's Case Updates, we look back on five cases previously covered which have had significant updates. We will also cover three smaller updates in which reward money for information has been increased in hopes of stirring up new tips and leads.
Case Updates:
233 - The Murder of Paul & Melody Jones
017 - The Disappearance of Brandon Lawson
Help Find Brandon Lawson ...
Case Updates:
233 - The Murder of Paul & Melody Jones
017 - The Disappearance of Brandon Lawson
Help Find Brandon Lawson ...
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June 24, 2025 • 103 mins
As Christmas of 1995 drew near, many families in rural Ohio drew closer and felt themselves caught up in the joy and pageantry of the holiday season. Unfortunately, for one family, the holiday would forever be associated with pain and grief, loss and doubt, a disappearance and the unknown.
John and Shelly Markley were devoted and loving parents to their five children. During a week already marked by a family trag...
John and Shelly Markley were devoted and loving parents to their five children. During a week already marked by a family trag...
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May 24, 2025 • 86 mins
When thirty-four year old Sherri Holland never arrived at her north Atlanta home after a drive up from Florida, her family knew something was wrong. More than a week later, her car was found abandoned along the side of I-75, less than thirty miles from her home. The car was in good shape, but a nail had flattened the front tire.
Days later, Sherri's beloved dogs were found less than three miles from the car but t...
Days later, Sherri's beloved dogs were found less than three miles from the car but t...
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April 23, 2025 • 103 mins
Twenty-eight year old Peggy Anne McGuire was last seen dropping her son off for school in Canadian, Oklahoma on the morning of Monday, November 16th, 2015. Within hours of leaving the school, the single mother would mysterious disappear leaving behind a series of confusing clues which continue to cloud the truth.
The day after her disappearance a local bar captured an unidentified individual on surveillance footage aba...
The day after her disappearance a local bar captured an unidentified individual on surveillance footage aba...
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February 19, 2025 • 176 mins
Mary "Bobo" Shinn was a well liked, friendly and talented artist and teacher living in her native Magnolia, Arkansas. Teaching classes out of a small art studio she purchased north of the town square, she made strong connections with many people, both children and adults, as she guided them to find their artistic abilities.
On Thursday, July 20th, 1978, the twenty-five year old was supposed to get together with friends...
On Thursday, July 20th, 1978, the twenty-five year old was supposed to get together with friends...
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January 29, 2025 • 51 mins
In this Special Episode, we take a look back at 2024 and answer listener submitted questions about the show, specific cases and anything that you want to know. Following the Q&A there is a short "state of the podcast" segment in which we discuss plans for 2025, new ideas for the show and different ways to get you, the listener, more involved. Regular episodes will return next week as we enter our 8th year of Trace E...
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