James Mazzara, a 20-year-old white male, disappeared after Thanksgiving 1978 and was later identified among the victims of John Wayne Gacy. Mazzara told his sister the day before he vanished that he was working in construction and was last seen walking toward Bughouse Square following the family Thanksgiving dinner. His remains were recovered from the Des Plaines River at Channahon, Illinois, on December 28, 1978, and identified by fingerprints; officials labeled him Body 33 among Gacy’s victims.

A definitive cause of death could not be determined. Gacy was arrested and later convicted of multiple murders, including those of the victims recovered from his properties and the river.

Was anyone in the area that Thanksgiving who remembers seeing James or recalls his movements that evening?