female serial killers

While stories about male murderers abound, one in six serial killers is female. Since their methods are usually quieter -- poisoning and smothering are most popular -- female killers have longer careers, wreaking havoc for an average of eight to eleven years as opposed to the two or three men get away with. Here are 10 of the most prolific female serial killers of all time. Nannie Doss Approximate Body Count: 11 Not much of a family woman, Doss killed four husbands, two sisters, two children, one grandchild, a mother-in-law and her own mother, all by poisoning. Despite a longer-than 30-year career, during which she ...