A former cop fatally shot his wife Saturday morning as their two young children watched in horror, law enforcement sources, said.

The sources identified the suspect as Kevin Canty, 43, and said the violence took place at the couple’s home on 104th Street in Ozone Park, Queens.

A neighbor said he was at a nearby deli when he saw the kids, a 4-year-old girl and a boy, 8, run from the house yelling, “Daddy shot Mommy!”

His 40-year-old wife, Jessica, suffered gunshot wounds to her abdomen and died in an ambulance rushing her to Jamaica Hospital.

Police caught up with Canty near 97th and Centreville streets — about a mile from his home.

Another neighbor described Canty as “scary looking an intimidating.”

He had had worked as a Manhattan transit cop before retiring last year with a disability, police sources said. Another resident told The Post he was in the bathroom when he heard the woman’s screams. “I heard a woman yelling, saying ‘No, no, no!’” he said. “It sounded like it was on TV.”

Police caught up with Canty near 97th and Centreville streets — about a mile from his home.

Canty worked as Manhattan transit cop before retiring last year with a disability, police sources said.

In 2012, he was lauded on the City of New York’s and NYPD’s Facebook pages for helping to save the life of a man who had a heart attack in Union Square.

Neighbors described the ex-cop as quiet and intimidating.

“He was kind of a silent guy who looked scary and intimidating,” said Danny Ali, 30. “He doesn’t really talk to people too much. You have to talk to him first.”

Shaheed Skates said he saw the wife taking their children to day care.

“Lately she seemed happier,” said Skates, 18. “She started opening up more, and talking to neighbors more.”

Others said the pair often fought in public.

“They were not a happy couple,” said Joanne Bagley, 52. “They fight all the time on the block. I guess it was inevitable.”