Lieutenant Giuseppe "Joseph" Petrosino

Lieutenant Giuseppe "Joseph" Petrosino

New York City Police Department, New York

End of Watch Friday, March 12, 1909

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Giuseppe "Joseph" Petrosino

Lieutenant Joseph Petrosino was assassinated by the Italian mafia in Sicily, Italy while conducting an investigation.

Lieutenant Petrosino founded the agency's Italian Squad, which was responsible for investigating the Italian mafia in New York City and was responsible for decreasing Italian mafia crime by fifty percent. He was sent to Italy in an attempt to infiltrate the mob and collect evidence that would shut them down for good. The mafia received a tip that he was a police officer and killed him. More than 250,000 citizens attended his funeral.

A trial was held in connection with Lieutenant Petrosino's murder; a local crime boss had been arrested by Lieutenant Petrosino years before for involvement in a New York murder, then deported, but was brought to trial for participation in Lieutenant Petrosino's death. The suspect was acquitted because of an alibi but claimed afterward that he had killed Lieutenant Petrosino. The suspect was imprisoned years later on another murder charge and died in prison in 1943.

In addition to the crime boss, who is believed to have masterminded Lieutenant Petrosino's killing, there were two other suspects believed to have been the actual triggermen, one was arrested but released for lack of evidence and died years later in a mental hospital; the other committed suicide in 1969.

Lieutenant Petrosino had been with the New York City Police Department for 25 years. He was survived by his wife and infant daughter.

He is buried in Calvary Cemetery, Woodside, Queens County, New York.


  • Age 48
  • Tour 25 years
  • Badge 285

Incident Details

  • Cause Gunfire
  • Location Overseas
  • Weapon Gun; Unknown type
  • Offender Sentenced to life; deceased


Most Recent Reflection

View all 58 Reflections

hello Lieutenant.

the 115th anniversary of your death will be here in a couple of days. Thank you for all you did in the fight against the Mafia in the early 20th century. You might have lived long enough to retire from the NYPD if the press in NYC hadn't jumped the gun and written about your trip to Sicily while you were still there. Anyway, I often wonder if you had any relatives who carried on your fight against the Mafia after you were gone. I hope you are continuing to rest in peace.

Daniel Ryan
Private Investigator (Retired)

March 11, 2024

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