Margie Velma Barfield (1969-1978) a 53-year old grandmother, killed 7 husbands, fiances, and her own mother in Lumberton, North Carolina. She burned some victims to death while they slept (made to look like smoking in bed), arranged prescription drug overdoses for others, and resorted to arsenic made to look like gastroenteritis for others. She was executed by lethal injection in 1984, the first woman to be executed in the U.S. since 1976.