Rick Louis Johnston was 17 when he was killed on August 6, 1976, in Norwood Park Township, Cook County, Illinois. He was a high school student from Bensenville who was dropped off by his mother at the Aragon Ballroom to attend a concert — the last time he was seen alive.

Johnston was identified as Body 23 among the victims of John Wayne Gacy. His remains were recovered from the crawl space of Gacy’s home and confirmed through dental records on January 1, 1979. Gacy was later arrested in December 1978 and ultimately convicted for numerous murders.

What information about Rick’s whereabouts that night or the people he was with might still help fill gaps in the timeline?