A Japanese death-row inmate, dubbed the "Black Widow" after she used cyanide to kill her elderly lovers, has died in a detention center at age 78, officials said on Friday. Chisako Kakehi was ...

A notorious Japanese serial killer known as the “Black Widow” has died on death row while awaiting execution for poisoning multiple elderly men with cyanide to get nearly $9 million in inheritances.

Only seven years into her marriage did Yuki Niimi first touch her husband — at a morgue where she collected his body after he was executed. Yuki Niimi is the widow of Tomomitsu Niimi who was executed ...