A 51-year-old priest, Father Roberto Malgesini, was stabbed to death in central Como on Tuesday.
The killed turned himself into the Carabinieri police after the attack, sources said.
The assailant was a homeless foreign national with mental health problems, Como church sources said.
The attack is said to have taken place following a row in the street.
Don Malgesini was well known in the area for his work to help migrants.
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