John Wayne Gacy remains the stuff of nightmares, a symbol of evil with the dress-up-like-a-clown twist to ensure his enduring place in the true-crime genre. "Conversations With a Killer: The John Wayne Gacy Tapes" finds the wispiest hook to add to that filmography, drawing from 60 hours of unearthed audio sprinkled throughout this three-part Netflix docuseries.
