December 30, 1978 — Dennis Nilsen commits his first murder

Also known as ‘The Kindly Killer’ and ‘The Muswell Hill Murderer’, Dennis Nilsen was 33 years old when he made his first killing, that of Stephen Holmes. Holmes, like most of Nilsen’s victims, was a teenaged male. Nilsen strangled and drowned him, then indulged his necrophiliac tastes by masturbating twice over the body. Unlike his later victims (and while Nilsen was convicted of six murders, his own confession to police lists 15), Holmes was not dissected after his death.

Nilsen would finally be caught in 1983, and sentenced to life imprisonment. It is known that he killed at least 12 people (although he claimed more) and attempted at least seven more murders. At the time of this writing, he remains in HMP Full Sutton, a maximum security prison in Yorkshire.