Frederick Walter Stephen West (29 September 1941 – 1 January 1995), better known as Fred West, was an English serial killer.
Between 1967 and 1987, he and his wife Rosemary tortured, raped and murdered at least 12 young women and girls, many at the couple's homes. The majority of the murders occurred between May 1973 and September 1979 at their home in Gloucester.
Rosemary West also murdered Fred's stepdaughter (his first wife's biological daughter) Charmaine, while he was serving a prison sentence for theft.
http://news.bbc.co.uk/2/hi/uk_news/magazine/3593137.stm