DNA genealogy and AI help solve a 1993 Illinois cold case
BBC Technology reports that Madison County Sheriff's Office detectives sent genetic evidence from the 1993 killing of Randy Gail Sperino to Houston-based Othram, which used investigative genetic genealogy to identify a male relative and point investigators to Albert Zigler, who confessed and was charged in May. Detectives also used CentralSquare's Centerline AI platform to analyze more than 2,000 pages of records, reconstruct timelines and identify evidence for DNA testing. Othram says the technique cannot solve every case, and a King's College London forensic genetics professor flagged privacy concerns because relatives may not have consented to law-enforcement matching.
The case shows how investigative genetic genealogy and AI record analysis were used together to help identify a suspect in a decades-old homicide, while raising consent and privacy questions that UK authorities are still studying.
ByChris Marshall
Technology Reporter
Randy Gail Sperino was last seen alive on the evening of 9 November 1993, as she was getting into a pickup truck in Granite City, Illinois.
The 34-year-old's body was found hours later in a field nearby, the victim of blunt force trauma.
The identity of her killer was a mystery. DNA evidence found at the crime scene was tested against standard law enforcement databases, but no matches were found.
#Othram#CentralSquare#Centerline AI#Madison County Sheriff's Office#King's College London#UK Home Office