Louis Henry Hufnagel, an officer with the Crafton Borough Police Department, was shot and killed when responding to a burglary on the night of September 8, 1919. “Three foreigners” – Antonio Perobuzno, Joseph Pin, and Amendio Caruso – were arrested at the scene, though no evidence connected them to the crime.
All three men were subsequently released due to a lack of evidence. No other arrests were made.
State Killings in the Steel City: The History of the Death Penalty in Pittsburgh 