The Oklahoma Peeping Tom Killer: How DNA and Footprint Evidence Solved an 18-Year Cold Case
In the quiet town of Edmond, Oklahoma, a brutal home invasion in 1986 left one man dead and his girlfriend traumatized. The attack seemed random, senseless, and terrifying — the kind of crime that makes people wonder whether the killer might never be found.
For nearly two decades, that fear was very real.
The murder of Gary Larson remained unsolved for 18 years. Detectives chased leads across multiple states, interviewed suspects, and even received eyewitness identification pointing to possible perpetrators. But each time investigators thought they had their suspect, the forensic evidence told a different story.
Ultimately, it was that same forensic evidence — preserved from the very beginning — that would finally expose the killer.
The Night Gary Larson Was Murdered
In the early morning hours of August 16, 1986, police in Edmond, Oklahoma received a frantic call from a woman reporting that an intruder had broken into her home, stabbed her boyfriend to death, and held her captive for hours.
When officers arrived at the home, they discovered 27-year-old Gary Larson lying near the kitchen wall, covered in blood. He had been stabbed 24 times, primarily across the chest and abdomen.
His girlfriend told detectives a disturbing story.
She said the couple had gone to bed earlier that night when they heard noises in the living room. Gary got up to investigate, but within moments she heard a violent struggle. When she ran toward the sound, she saw a man attacking Gary in the dark.
According to the woman, the intruder was wearing only a pair of gloves and underwear.
After stabbing Gary, the attacker chased her into the bedroom, where he assaulted and tortured her for hours before eventually leaving the home.
While the story sounded almost unbelievable, investigators soon found evidence inside the house that matched her account.
The Crime Scene Evidence
The crime scene revealed several critical pieces of forensic evidence.
Investigators documented bloody barefoot footprints leading away from Gary Larson’s body and through the house. Unlike shoeprints, barefoot impressions contain unique ridge patterns similar to fingerprints, making them valuable for identification.
Detectives also used luminol, a chemical that reacts with trace amounts of blood, to track where the attacker had moved throughout the home.
The luminol revealed that the footprints led directly into the bedroom where the surviving victim said she had been assaulted.
Outside the house, investigators discovered something else unusual: a barefoot impression in the dirt beneath a window, along with what appeared to be a seated impression in the soil.
The window faced the bathroom — the same bathroom where the victim said she had taken a shower shortly before going to bed.
This raised a disturbing possibility: the attacker may have originally been a Peeping Tom watching the house from outside.
Early Suspects and Dead Ends
Despite the disturbing evidence, identifying the killer proved extremely difficult.
Over the years, investigators pursued multiple suspects.
One early suspect lived just blocks away from the crime scene and matched parts of the FBI’s behavioral profile. But when detectives compared his DNA and foot impressions to the evidence, he was ruled out.
Another suspect was even identified by the surviving victim in a photo lineup. But once again, forensic testing cleared him.
These setbacks were devastating for investigators. Even eyewitness identification couldn’t overcome the objective reality of the forensic evidence.
For years, the case remained cold.
A Strange Discovery at the Crime Scene
Several years after the murder, detectives returned to the vacant house hoping to find new clues.
Instead, they discovered something unexpected.
Underneath the same broken window where the killer had entered the home, investigators found a bra belonging to the female victim.
Detectives believed the attacker may have taken the bra as a trophy after the assault and later returned to the house to relive the crime.
The discovery reinforced investigators’ belief that the killer was someone familiar with the neighborhood and comfortable enough to return to the scene years later.
Still, the case remained unsolved.
The Break in the Case
Eighteen years after the murder, a family in Edmond reported a Peeping Tom repeatedly lurking outside their home.
One night in 2004, police were finally able to catch the suspect in the act.
The man they arrested was Jonathan Scott Graham, a 40-year-old who lived just blocks away from where Gary Larson had been murdered.
When officers searched his home, they discovered disturbing evidence, including hidden photographs of women taken through windows and what investigators described as a “rape kit” containing restraints, lubricants, and tools.
But the most important evidence came from forensic testing.
Police collected Graham’s DNA and took an impression of his barefoot print.
When the crime lab completed the comparison, the results were undeniable.
His DNA matched the profile taken from the victim’s rape kit.
And his barefoot impressions matched the bloody footprints found at the crime scene in 1986.
After 18 years, investigators finally had their killer.
The Killer’s Confession
After the forensic matches were confirmed, Jonathan Scott Graham admitted what happened that night.
He told investigators he had gone out specifically to peep into people’s windows, something he said he did regularly.
When he looked into Gary Larson’s home, he saw the victim preparing for bed and later watched her shower through the window.
Believing the woman was alone, Graham returned later that night, cut the window screen, and entered the house.
But Gary Larson woke up and confronted him.
Graham said he panicked and began stabbing him.
The murder had not been planned — but the violence that followed changed multiple lives forever.
Justice After 18 Years
In 2005, Jonathan Scott Graham pleaded guilty to murder, rape, and burglary.
He received three consecutive life sentences without the possibility of parole.
The case of Gary Larson’s murder serves as a powerful reminder of the importance of forensic evidence.
Even when suspects came and went, and years passed without answers, the evidence remained.
The DNA collected from the victim’s rape kit and the barefoot impressions preserved from the crime scene quietly waited for the day when technology and circumstance would reveal the truth.
Eighteen years later, they finally did.
And because of that evidence, Gary Larson’s killer will never walk free again.