Homicide detectives said Tuesday they would present evidence to prosecutors in the death of a 5-month-old boy in Carson to determine if criminal charges are warranted against the boy's father. 

Seth Cayton was found dead by L.A. County Sheriff's deputies Monday afternoon when the father called 9-1-1 to report he'd accidentally left the boy in an S-U-V hours earlier.

Cayton was still buckled into his car seat when he was found and was partially wrapped in a blanket, investigators said.

There were no signs of trauma and no evidence the boy had accidentally been choked or suffocated, they said.

The father's story seems plausible, but L.A. County Sheriff's homicide detective Ed Aguirre said more interviews and autopsy results were needed before the investigation could be closed.

The father told detectives he left his home on Cliveden Ave. in the morning Monday and dropped his other children at day care. The father then switched vehicles and went to work, and said he realized around 3:00 pm the infant had been left behind.

The outside air temperature was in the mid to high 70s but it was likely much hotter inside the vehicle and there was nothing to shade the car seat, authorities said.

Cayton's father has worked as a security guard and his mother is a Los Angeles School Police officer, a law enforcement source confirmed.

-- Eric Leonard