John Wayne Gacy is one of the worst serial killers in American history, murdering at least 33 teenage boys and men in the late 1970s.

He was executed by lethal injection in 1994, but many are confident he killed even more victims than the ones he admitted to, and took plenty more secrets to the grave.

THE END BITS

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CREDITS

Guest: Karen Conti. You can find out more about her book Killing Time With John Gacy here.

Host: Gemma Bath

Executive Producer: Gia Moylan

Audio Producer: Scott Stronach

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Mamamia acknowledges the Traditional Owners of the Land we have recorded this podcast on, the Gadigal people of the Eora Nation. We pay our respects to their Elders past and present and extend that respect to all Aboriginal and Torres Strait Islander cultures.