*Here is just a description from a biography I did not write this* 

Theodore Robert Bundy (born Cowell; November 24, 1946 – January 24, 1989) was an American serial killer who kidnapped, raped, and murdered numerous young women and girls during the 1970s and possibly earlier. After more than a decade of denials, he confessed to 30 homicides, committed in seven states between 1974 and 1978. His true victim total is unknown, and believed by some investigators to be higher.

Bundy was regarded as handsome and charismatic, traits that he exploited to win the trust of victims and society. He would typically approach his victims in public places, feigning injury or disability, or impersonating an authority figure, before knocking them unconscious and taking them to secluded locations to rape and strangle them. He sometimes revisited his victims, grooming and performing sexual acts with the decomposing corpses until putrefaction and destruction by wild animals made any further interactions impossible. He decapitated at least 12 victims and kept some of the severed heads as mementos in his apartment. On a few occasions, he broke into dwellings at night and bludgeoned his victims as they slept.

Frederick Walter Stephen West (29 September 1941 – 1 January 1995) was an English serial killer who committed at least 12 murders between 1967 and 1987 in Gloucestershire, the majority with his second wife, Rosemary West. All the victims were young women.