John Wayne Gacy
Four decades after John Wayne Gacy lured more than 30 young men and boys to his Chicago-area home and strangled them, his case has helped authorities solve another killing one he didn’t commit.
Authorities have identified a 19-year-old Chicago construction worker who disappeared in 1976.
The Cook County Sheriff’s Department says DNA testing could solve the last mystery of one of the nation’s worst serial killers.
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