Serial killer
From Tardis Wiki, the free Doctor Who reference
A serial killer was a person who killed several people over a period of time.[source needed]
Suzi Costello used the life knife to kill three victims. (TV: Everything Changes) She also murdered her father, as well as several others.[source needed]
Clarence de Marco killed fourteen women in Victorian London. He was sentenced to death, but was saved thanks to information he had on the Doctor. (TV: The Name of the Doctor)
