In 1937, Abbandando assisted in the murder of George Rudnick, a loan shark in Brooklyn. Reles had ordered Rudnick's murder because he had received information that Rudnick was a police informant. Using an ice pick and a meat cleaver, Abbandando and several other gang members strangled Rudnick, stabbed him 63 times, and crushed his head inside a garage. No one was arrested for the crime. In February 1939, Abbandando and others killed mobster Felice Esposito. The contract was issued because he had been a prosecution witness in a mob murder trial 17 years earlier.