21. Rosemary West, a serial killer in England who murdered, sexually assaulted, and tortured at least nine women (possibly more) along with her husband, Fred, from 1973–1987.

By JULIE WATSON - Associated Press Writer - 01/27/06 Jan 27, 2006 Jan 27, 2006 0 ...

According to FBI data, women accounted for 70 percent of the 1,398 known victims of serial killers during the 1985 to 2010 time frame (1). By way of comparison, females represented only 22 percent ...