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How Was John Wayne Gacy Caught?

How Was John Wayne Gacy Caught?

Kim Byers Lund worked with Rob Piest, a 15-year-old victim of serial killer John Wayne Gacy, at a local pharmacy in Des Plaines, Illinois. She placed the receipt for her photo order in the pocket of Rob's jacket the night he went missing in December 1978, which helped lead authorities to Gacy.