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American serial killer John Wayne Gacy was executed by lethal injection for the murders of twelve teenage boys and young men in a series of killings committed between 1972 and 1978.

Historical image related to American serial killer John Wayne Gacy was executed by lethal injection for the murders of twelve teenage boys and young men in a series of killings committed between 1972 and 1978. from May 10, 1994

John Wayne Gacy

American serial killer (1942–1994)

John Wayne Gacy was an American serial killer and sex offender who raped, tortured and murdered at least thirty-three young men and boys between 1972 and 1978 in Norwood Park Township, Illinois, a suburb of Chicago. He became known as the "Killer Clown" due to his public…
Source: Wikipedia (CC BY-SA)

Lethal injection

Form of execution involving injection of chemicals into the bloodstream

Lethal injection is the practice of injecting one or more drugs into a person for the express purpose of causing death. The main application for this procedure is capital punishment, but the term may also be applied in a broader sense to include euthanasia and other forms of…
Source: Wikipedia (CC BY-SA)