"Her death was confirmed at a hospital on Thursday" after she was found lying in her cell at the Osaka detention centre, a justice ministry official told AFP.
Chisako Kakehi, pictured here in March 2014, was sentenced to death for the murder of three men, including her husband. (AFP)
TOKYO - A Japanese death-row inmate, dubbed the "Black Widow" after she used cyanide to kill her elderly lovers, has died in a detention centre at age 78,
Login to begin your journey to our premium content