(KTUU/CNN/Meredith) -- Authorities in Alaska have made an arrest in a 1993 murder.
Police said a man who was living in Auburn, Maine has been arrested and charged with killing a 20-year-old woman at the University of Alaska Fairbanks.
More than 25 years have passed since the brutal killing of 20-year-old Sophie Sergie of Pitkas Point, Alaska. She was found dead in a University of Alaska Fairbanks dormitory bathtub on April 26, 1993.
She was visiting friends while in town for an appointment.
On Friday, police finally found what they were looking for -- they arrested 44-year-old Steven H. Downs of Auburn, Maine.
Authorities said Downs will be transferred to Alaska where he will be tried for the murder and sexual assault of Sergie.
“This arrest is the culmination of years of effort and tenacious attention by this department to solve a horrendous murder,” Amanda Price, Commissioner of the Department of Public Safety said.
How police made the arrest
Cold case unit detectives took another look at the case in early 2018.
When the Golden State serial killer was arrested in California last year because of leads generated through a genealogy website, Alaskan authorities decided to try the same "genetic genealogy" technology on Sergie’s murder case.
The technology uses familial genetic history to pinpoint likely suspects.
The genetic profile led to Downs, who was 18 years old at the time of the murder, a student at University of Alaska Fairbanks, and lived in the dormitory where Sergie was found.
“Through their dogged persistence, advances in tech and spirit of cooperation exhibited by other agencies that touched this case, justice for Sophie is finally within reach,” Colonel Barry Wilson, Director of Alaska State Troopers said.