April 15, 1952 - Donald Harvey

Donald Harvey (April 15, 1952 – March 30, 2017) was an American serial killer who claimed to have murdered 87 people, though he has 37 confirmed victims. He was able to do this during his time as a hospital orderly.

Harvey claimed to have begun killing to "ease the pain" of patients—mostly cardiac patients—by smothering them with their pillows. However, he gradually grew to enjoy killing and became a self-described "angel of death". At the time of his death, Harvey was serving 28 life sentences at the Toledo Correctional Institution in Toledo, Ohio, having pleaded guilty to murder charges to avoid execution.

Content sourced from en.wikipedia.org/wiki/Donald Harvey under CC BY-SA 4.0.