It has long been suspected that there are vast numbers of female mass murderers (serial murderers) who have been undetected....due to their VERY femaleness. Societal norms of judgement. Also, that these murderers are POISONERS, through food supply. There is an increasing amount of historical evidence for this.
Florida’s Black Widow Buenoano comes to mind— a real piece of work (executed electric chair).
Marybeth Tinning (Near Albany NY)
http://en.wikipedia.org/wiki/Marybeth_Tinning
Shows you don’t need a gun. True with abortionists,too.