INVESTIGATIVE CASE DOSSIER: THE 1987 MURDER OF ROXANNE WOOD: HOW IDENTIFINDERS DNA CAUGHT PATRICK GILHAM AFTER 35 YEARS
- Victim: Roxanne Lynn Wood (Age 30; Dental Hygienist)
- Date of Crime: February 20, 1987 (Night)
- Location of Crime: Home in Niles Township, Berrien County, Michigan
- Perpetrator: Patrick Wayne Gilham (Born 1954; South Bend, Indiana)
- Cause of Death: Incisional neck wound following violent assault
- Breakthrough Method: Investigative Genetic Genealogy from 0.82ng DNA (Identifinders International)
- Date of Arrest: February 14, 2022 (South Bend, Indiana)
- Sentence: 23 to 50 years in Michigan state prison (Plea in April 2022)
On the night of February 20, 1987, 30-year-old Roxanne Wood returned to her Niles Township, Michigan home after an evening out with her husband. When her husband arrived minutes later, he discovered a scene of unimaginable violence: Roxanne had been brutally assaulted and murdered on the kitchen floor. The weapon had vanished, and for thirty-four years, the crime haunted southwest Michigan. In 2021, pioneering genetic genealogists at Identifinders International extracted viable DNA from an infinitesimal 0.82-nanogram sample, cracking the Roxanne Wood murder and convicting 67-year-old Patrick Gilham.
The Night of the Murder in Niles: February 1987
Roxanne Wood and her husband Terry were enjoying a Friday evening at a local bowling alley in downtown Niles, Michigan. Roxanne drove home ahead of her husband around 11:30 PM. When Terry arrived at their suburban home roughly forty-five minutes later, he found the front door unlocked and his wife lying deceased on the floor, her throat cut with a kitchen knife that the assailant took from the scene.
Michigan State Police investigators combed the property, recovering biological trace evidence left on Roxanne’s body. Despite rigorous questioning of Terry Wood and dozens of acquaintances, Terry was cleared of suspicion, and the perpetrator remained completely unidentified as decades passed.
The 0.82 Nanogram DNA Miracle
In August 2020, Michigan State Police Detective Chuck Christensen partnered with Dr. Colleen Fitzpatrick and Misty Gillis of Identifinders International. The forensic obstacle was immense: only 0.82 nanograms of degraded DNA remained in evidence freezers—far below conventional testing thresholds.
Using specialized whole-genome sequencing protocols developed by bioinformatician Dr. Greg Magoon, Identifinders generated an actionable SNP dataset. Genealogists constructed ancestral family trees tracing paternal lineages back to the early 1800s, narrowing down millions of possibilities to a single family branch in northern Indiana.
Cigarette Butt Surveillance and Confession
By mid-2021, genealogists identified 67-year-old Patrick Wayne Gilham of South Bend, Indiana, who had a 1980s criminal record for armed robbery and sexual assault in the area. Undercover Michigan State Police detectives shadowed Gilham and retrieved discarded cigarette butts from a public parking lot.
Forensic testing confirmed a 100% statistical match between the cigarette DNA and the crime scene sample. On February 14, 2022, detectives arrested Gilham. During questioning, Gilham broke down and admitted to the homicide.
Sentencing and Historic Closure
In April 2022, Patrick Gilham pleaded no contest to second-degree murder in Berrien County Trial Court. Judge Sterling Schrock sentenced Gilham to 23 to 50 years in state prison, ensuring the killer will remain incarcerated for the remainder of his life. The case proved that even nanogram-level degraded cold case DNA can deliver absolute justice.
Case Timeline & Key Forensic Milestones
| Date / Year | Milestone / Event | Forensic Significance |
|---|---|---|
| Feb 20, 1987 | Roxanne Wood murdered in Niles Township, MI | Perpetrator leaves microscopic biological trace |
| 1999–2012 | STR testing generates DNA profile | Uploaded to CODIS with zero database hits |
| Aug 2020 | Identifinders processes 0.82ng DNA sample | SNP sequencing builds genetic genealogy profile |
| Feb 14, 2022 | Patrick Gilham arrested following cigarette sting | DNA match confirms 100% certainty |
| April 25, 2022 | Gilham sentenced to 23–50 years in prison | 35-year cold case officially closed |
Frequently Asked Questions (FAQ)
Who killed Roxanne Wood in 1987?
Patrick Wayne Gilham, a South Bend, Indiana resident with a prior history of violent offenses, murdered Roxanne Wood in her home on February 20, 1987.
How did police solve the Roxanne Wood murder after 35 years?
Identifinders International used advanced whole-genome sequencing on just 0.82 nanograms of DNA to build family trees that identified Gilham.
What sentence did Patrick Gilham receive?
Gilham pleaded no contest to second-degree murder in April 2022 and was sentenced to 23 to 50 years in Michigan state prison.
