During a three - year period beginning in 1894 , Vacher murdered .
During a three - year period beginning in 1894 , Vacher mutilated at least 11 people ( one woman , five teenage girls , and five teenage boys ) .
During a three - year period beginning in 1894 , Vacher murdered and mutilated at least 11 people ( one woman , five teenage girls , and five teenage boys ) .