Soon after the murder, a government informant later claimed that one of Bonventre's killers was Bonanno mobster Cosimo Aiello. However, in October 1984, Aiello was shot to death in the parking lot of a Clifton, New Jersey restaurant. In January 2004, nearly 20 years after the Bonventre murder, federal authorities arrested Louis Attanasio, Peter Calabrese and Louis's brother, Robert Attanasio.
Soon after the murder, a government informant claimed that one of Bonventre's killers was Bonanno mobster Cosimo Aiello. In October 1984, Aiello was shot to death in the parking lot of a Clifton, New Jersey restaurant. In January 2004, nearly two decades after the Bonventre murder, federal authorities arrested Louis Attanasio, Peter Calabrese and Robert's brother, Robert Attanasio.