Some of the most famous serial killers in history are not those with the highest number of victims, in fact, some of the most prolific serial killers in history are virtually unknown. Here are ten cold-blooded murderers who are suspected of killing the most victims.
#1 – Delfina and María de Jesús González
These two Mexican sisters ran a brothel from the 1950s until the mid-1960s where they murdered total of 91 victims. The sisters killed the prostitutes when they became too ill, lost their looks or stopped being profitable. They also murdered customers who came with large amounts of cash. The González sisters were each sentenced to 40 years in prison in 1964. Delfina died in prison as a result of an accident but Maria finished her sentence and disappeared after her release…