Martha Beck was born Martha Jule Seabrook on the 6th May 1920, in Milton, Florida.By 1947 she had two children by two different men, neither one wanting anything to do with her. She placed an advertisement in a lonely-hearts column in 1947, which was answered by Raymond Fernandez. Fernandez visited Martha in Florida and she eventually moved with him to New York. Fernandez regularly answered lonely-hearts ads to meet women, who he then robbed when the relationship soured. He revealed his scheme to Martha and she decided to collaborate, posing as his sister or sister in law. But she grew to become jealous and angry if he had sex with his victims. In 1949 she found Fernandez in bed with one such candidate, Janet Fay, and she smashed her skull with a hammer.Beck was sentenced to death by electrocution in Sing Sing prison, New York, on the 7th March 1951.