The 5-year-old girl and 8-year-old boy who reportedly witnessed their father, a retired transit cop, allegedly shoot their mother to death, have been placed in the care of a relative on their mother's side, police said.

Kevin Canty, 43, who was an NYPD officer from 1994 to 2013, when he retired from the force with a disability, was charged Sundaywith second degree murder and criminal use of a firearm. Police declined to say whether the children had given witness statements nor did they confirm that that the kids had witnessed the shooting, saying the investigation was ongoing.

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Canty's wife, Jessica Mera-Canty, of 97-44 104th St. in Ozone Park, was found by cops Saturday around 11 a.m. with multiple gunshot wounds to her body. She was pronounced dead at Jamaica Hospital.

According to Mera-Canty's LinkedIn account, she worked as an intake and assessment supervisor at the Federation Employment and Guidance Service. On Sunday, the medical examiner ruled that Mera-Canty was killed by gunshot wounds to her torso and the manner of her death was homicide.

Canty was apparently awaiting arraignment Sunday night.