Judy Buenoano, formerly Judy Goodyear, became engaged to John Gentry in 1980. Unfortunately, Gentry was severely injured when his car exploded. Judy had successfully poisoned her a husband, boyfriend and son with arsenic. She should have stuck to poison.
There was no life insurance payment, because forensic scientists were unable to find out why Frank Rodriguez died. His wife Angelina Rodriguez offered to help them.