Illinois
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Robert Piest: The Missing Teen Who Exposed John Wayne Gacy’s Crimes
The Disappearance That Changed Everything Robert Piest, a 15-year-old sophomore at Maine West High School, was working his final shift at Nisson Pharmacy on Touhy Avenue in Des Plaines on what should have been a night of family celebration. His mother Elizabeth Piest had arrived around 9 p.m. to pick him up for her 46th birthday dinner when Robert made a decision…
