For decades, dozens of human skeletons have sat nameless in medical examiners' offices across Minnesota.
The state Bureau of Criminal Apprehension (BCA) is gambling that advanced DNA techniques will soon link those unidentified remains to the names of people who have been missing for as long as 40 years.
But for that to happen, state officials need relatives of long missing Minnesotans to step forward and let investigators take a simple swab from the inside of their cheeks.
That DNA will then be compared to DNA from at least 100 remains found in Minnesota from the 1970s to the 1990s.
"Without the participation of family members, this effort cannot succeed. We need families to come forward, no matter how long ago their loved one went missing," said Catherine Knutson, director of the BCA forensic science laboratory "We need to give these people back their names and get them back to their families."
.More than 20 years after his adult son Daniel left his girlfriend's Maplewood home and never returned, Elliott Karpeles said he has come to the point where he tries to not dwell on what could have happened.
"I only have closure now because I don't know anything," said Karpeles, 78, from his home in Santa Barbara, Calif. But, he added, "If I had any more information, as sad as it might be, there would be definite closure."
Karpeles said he plans to contact state authorities to see if DNA testing could be used in his son's 1992 case.