A Japanese woman facing trial for poisoning her husband with cyanide may have also murdered as many as six former boyfriends, authorities say.
Police initially thought Chisako Kakehi's husband, Isao, died of a heart attack—until they discovered traces of cyanide in his blood. Investigators say at least six of Kakehi's romantic interests—all older, well-situated men—met similar ends.
All were at least moderately wealthy, with homes and ample savings accounts accumulated over a lifetime of work in order to enjoy a comfortable retirement. Most died soon after drawing up wills that named her as the sole beneficiary.