Robert Hutton, a man that has been presumed dead for decades, has been reunited with his family after investigators found him alive in Montana.

My San Antonio reported that Hutton was located in April after his sister submitted his name along with about 150 others as the case of the John Wayne Gacy murders were reopened to identify some bodies. Hutton’s sister thought that it could be possible that her brother was a Gacy victim. Hutton was last heard from in 1972.

Gacy is believed to have lured 33 young boys and men into his home, sometimes hiring them to do construction work. It is easy to see how Hutton’s sister may have thought he could have been a victim. At age 21, Hutton was a hitchhiker and often did construction work while traveling.

The Chicago Tribune said that after so many years had passed Hutton was embarrassed to try and contact his family. He tried in the ‘80s and ‘90s but with no luck in contacting them.

Since the sheriff’s office began investigating unidentified Gacy victims in 2011, approximately 150 families, like the Huttons, came forth with missing persons they believed could be victims of Gacy. Only one of those 150 has been identified so far as a man named William George Bundy.

Five of these, like Hutton were found alive. The sheriff’s office continue to investigate about 40 more leads.