John Kelly Gentry, 30, vanished from Monroe, Michigan, on April 12, 1983, amid allegations tying him to two killings. On the day he was last seen, his 25-year-old girlfriend Barbara Gerber was found stabbed to death in her Summerfield Township home and her car was later recovered in Toledo, Ohio. Six days later, 52-year-old William Veith was found bludgeoned to death in the basement of his rare coin shop in Toledo; his car was reported stolen and later recovered in South Bend, Indiana.

Two postcards were mailed from Southern California in May 1983 — one to a friend in San Diego and one to his father in Los Angeles — and then the trail went cold. A nationwide arrest warrant for murder was issued in 1988 and remains active. Investigators have received tips through the years suggesting Gentry might be in California and possibly presenting as a woman; age-progressed images have been released.

Anyone who knew Gentry, Gerber, or Veith, or who might recognize the man in the age-progressed photos, is asked to come forward with information.