Unidentified Victims Of John Wayne Gacy

Cook County Sheriff's investigators have exhumed the bodies of eight of the victims of serial killer John Wayne Gacy, in hopes of identifying all of his victims.

Authorities are asking the family members of anyone who disappeared between 1970 and 1978 and who is still missing to undergo saliva tests to compare their DNA to that of the victims.

Cook County Sheriff Tom Dart has set up a hotline for people to make arrangements for DNA tests: 800-942-1950.

Anyone looking for information also can visit the sheriff's website by clicking here. The website has general descriptions of the eight unidentified victims and the approximate date those victims would have disappeared.