John Wayne Gacy

…

…and a half after his marriage. Overall he had kidnapped over 30 victims and raped them before killing them. Gacy was found guilty in the deaths of thirty-three young men and as Sullivan said, he had the "singular notoriety of having been convicted of more murders than anyone else in American history." Gacy received the death penalty and was sent to Menard Correctional Center where, after years of appeals, he eventually was killed by lethal injection.