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,

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,

Chisako Kakehi was found guilty of killing three elderly lovers by poisoning them with cyanide, and attempting to murder another man. She had been on death row since 2017.

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