Name: Masanori Honda.
Died: March 9, 2012.
Age at death: 71.
Cause of death: Cyanide poisoning.
Location: Kaizuka, Osaka Prefecture, Japan.
Disability: Diabetes.
Details:
Mr. Honda moved in with a woman he had met through a dating service. Shortly afterward, he suffered heart failure while riding his motorcycle and died. His death was initially ruled natural, as was that of Minoru Hioki, who had also been living with the same woman. However, when she made the mistake of killing a healthy man whose death could not be written off, an autopsy was done and cyanide poisoning was discovered in all three bodies.
Case Status:
Chisako Kakehi (Common-law Wife), convicted of three murders, sentenced to death.
Sources:
Wikipedia: Chisako Kakehi
The 74-year-old ‘Black Widow’ killer who murdered her lovers with cyanide
Alleged black widow gets second cyanide charge
‘Black Widow’ charged in Japan over death of husband No. 4