Investigator Paul Holes is probing the bloody 2008 murder of former model Eva “Kay” Wenal, by looking at DNA and a baffling letter.

Paul Holes and Yolanda McClary investigate a double homicide that’s left a small town in Iowa spooked for nearly forty years. But his quest to bring justice to the families of Rose Burkert and Roger Atkison will lead him to an unexpected discovery.

Cold case investigator Paul Holes meets with former prosecutor Loni Coombs to discuss the murder of Eva "Kay" Wenal, who was murdered on May 1, 2008 at her home in Georgia. Months after she was killed, local media received a letter from the supposed killer, but Holes believes it could be a form of staging.

Investigators Paul Holes and Yolanda McClary revisit the underpass where police found Sarah DeLeon's abandoned car in 1989. Holes and McClary speculated that DeLeon could have stopped, gotten out of her car and then been attacked by the offender, who then killed her and disposed of her body along a set of railroad tracks in Kansas City, Kansas.

Cold case investigator Paul Holes and former prosecutor Loni Coombs discuss the pieces of leather lingerie found in the locked file cabinet of Eva "Kay" Wenal, who was murdered in her Georgia home. Did Kay have a secret life no one knew about, and was she keeping anything from her husband, Hal Wenal?

Paul Holes may be known for helping find the alleged Golden State Killer, but he is just getting started bringing criminals to justice.

Retired cold case investigator Paul Holes used genetic genealogy to find a suspect in the Golden State Killer case. He breaks down what a centimorgan is, why it can be important, and how genetic genealogy can be used by law enforcement.

In “The DNA of Murder with Paul Holes,” the retired cold case investigators looks into unsolved or cold cases. He explains how he approaches looking into an offender’s behavior.

Emotional clues can be woven into the evidence of a crime scene. Retired cold case investigator Paul Holes breaks down how he looks at the emotions expressed and what it can mean for investigators.

From the Golden State Killer to the Grim Sleeper, these cold cases heated up with breakthroughs in forensic genealogy.

In Oxygen’s “The DNA of Murder with Paul Holes,” the retired cold case investigator goes back to crime scenes even if years have passed or the buildings have changed. Holes explains why it can be helpful when looking at the evidence.

Investigator Paul Holes and former prosecutor Loni Coombs visit the former residence of Kay Wenal, who was killed at her Georgia home in 2008. At the time of her murder, Kay Wenal was married to millionaire real estate developer Hal Wenal. Kay had been punched in the face, and her throat had been slashed.

Investigator Paul Holes and former prosecutor Loni Coombs investigate the murder of Kay Wenal, wife of a millionaire businessman. She’s killed in her home in the middle of the afternoon. Was this a financially-motivated crime or did Kay have a secret life that led to her death?