
This episode covers the 1987 murder of Roxanne Wood, the investigation led by Detective Christensen, and the role of genetic genealogy in solving cold cases.
Terry Wood discovered his wife Roxanne murdered in their home after a night out. The investigation initially went cold due to limited technology.
In 2020, a professor at Western Michigan University, along with students, digitized the case files, allowing for better data management. This effort was crucial in moving the case forward.
Gabrielle Vargas, a genetic genealogist, created a profile of the suspect, leading to Patrick Gillum. Investigators needed a DNA sample to confirm his involvement.
After surveillance, they collected Gillum's DNA from a cigarette butt, which matched the DNA from the crime scene, solving the case decades later.
The murder of Roxanne Wood in 1987 was solved through genetic genealogy and diligent police work decades later.

This episode stands out for the following:
I believed that this case was extremely solvable.Police collect a cigarette butt to help close a decades-old cold case
We noticed that he was a smoker... a great source of DNA.Police collect a cigarette butt to help close a decades-old cold case
Investigators held their breath until the results came back.Police collect a cigarette butt to help close a decades-old cold case