19 Of The Most Evil Women In History [#19 – Mary Ann Cotton]

19. Mary Ann Cotton

When Mary Ann found out that she would receive payouts for the death of a family member, she wasted no time. She murdered 21 people via arsenic poisoning, 12 of which were her own children. She also killed several husbands and even her own mother just to make a quick buck.

Original Source: http://www.rantlifestyle.com/2014/08/05/10-of-the-most-evil-women-in-history/?utm_medium=referral&utm_source=Outbrain&utm_term=Title3