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

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. Chisako Kakashi,

A 78-year-old death inmate convicted of murdering her husband and two common-law partners with poison in western Japan more than a de