BRIGHTON, N.Y. – The Brighton Police Chief says we may never know why a father murdered his daughter and her grandmother last Friday, but we do know a little bit more about how it happened.

Police say Lawrence Mancuso used a stolen gun to shoot and kill his daughter Anne and her maternal grandmother Mary Liccini, then himself.

Police have tracked Mancuso’s movements that morning. It started around 9 a.m. when he left his apartment on Eastbrook Lane near the canal in Brighton. He then bought alcohol at a liquor store before going to a family member’s home in Greece and stealing several guns. Around 11:40 a.m. he parked his grey Audi one block from his ex-wife’s home. Radio calls say the car was full of bullets.

The chief says Mancuso shot his daughter and her grandmother inside the house. Then, he shot himself upstairs.

Berkeley Brean, News10NBC: “What kind of gun did he use?”

Chief David Catholdi, Brighton Police: “It was a revolver.”

Berkeley Brean: “Legally owned or illegally owned?”

Chief David Catholdi: “No, he came into possession of that. He stole that weapon from a family member that morning.”

As News10NBC first reported Monday night, Lawrence Mancuso called police to the same house the day before the murders. The chief calls it a routine custody call. He said it was the first time they had dealt with Lawrence Mancuso over custody and it was the first time they were called to the house.

Chief David Catholdi: “He didn’t think it was proper that the daughter was being attended to by the grandmother.”

Berkeley Brean: “He didn’t make any threats of violence on Thursday at all?”

Chief David Catholdi: “No. No threats of violence. It was a pretty benign call. He was cordial and that was the end of it.”

Berkeley Brean: “So what happened from Thursday to Friday?”

Chief David Catholdi: “That’s what I told you about. It goes into the why.”

When asked if these types of crimes are preventable, the chief said the community is rich in resources dealing with domestic violence.

He also said, “Is it preventable? As a human being, I would say that when people have evil set in their mind or heart and they are on a pathway towards violence, if it’s not interrupted I don’t know.”

The family has asked for privacy, but there is a GoFundMe page set up with a beautiful picture of Annie Mancuso to help Sarah Mancuso, who lost her daughter and mother. It has already raised more than $80,000.

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