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Mark of a Serial Killer

Gay Community on Lookout for Serial Killer

Also available on the nbc app

In 1982 Chicago, a pattern was emerging in a string of killings. It seemed someone was preying on the gay community — but was it a member or someone acting in hatred?

Tags: Mark of a Serial Killer, True Crime, oxygen, serial killers
S3 E61 minTV-14HighlightReality and Game ShowPrimetime
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