Investigators are hoping to obtain DNA evidence to help solve the cases.
The man said a DNA test taken years after the 1987 birth proves he isn’t the father.
The 44-year-old convict told police he was innocent because he makes sure he doesn’t leave evidence behind.
Family members who submit their DNA could provide the answers they are seeking in their loved one’s disappearance.
Macomb County Prosecutor Eric Smith says DNA has connected convicted sex offender Michael Loftis to the crime.
Detroit police say DNA evidence has helped solved a homicide from 20 years ago.
Two missing people have been identified after authorities collected DNA samples from their relatives as part of an “Identify the Missing” event in Detroit.
Michigan has more than 140 sets of unidentified human remains in its morgues around the state — and more than 4,000 missing persons cases.
The “Identify the Missing” event is being held next Tuesday.
Michigan officials are looking at whether policy changes are needed after it took years to determine that an unidentified body was that of a missing 13-year-old girl.