WEST COVINA >> A family dispute turned deadly when a West Covina man allegedly shot and killed his visiting father-in-law and mother-in-law Wednesday night.

The suspect’s wife was at work but their three young children were at home during the shooting in the 1300 block of East Oahu Street, according to West Covina Police Cpl. Rudy Lopez. He said officers found the 8-year-old daughter, the 6-year-old son and 3-year-old son hiding in a bathroom. They were not injured.

He said 43-year-old Caminero Wang was arrested on suspicion of murder. Lopez identified the victims as Chinese residents Aiping Diao and his wife, Shu Zhang. The 60-year-olds were visiting their daughter, he added.

Investigators don’t know yet what the dispute was about.

One of the neighbors called police and reported hearing gunshots and children screaming around 8:30 p.m.

Lopez said officers located the condo where the shooting took place and a man, later identified as Wang, surrendered without incident.

Officers recovered a handgun and found Diao and Zhang inside the home. Lopez said the couple was shot multiple times.

Ed Winter, spokesman for the Coroner’s Office, said the two victims were pronounced dead at the scene around 9 p.m.

Lopez said detectives are not looking for other suspects.

A neighbor who asked that his name not be used said the son-in-law lives at the home with his wife and three children. The couple bought the house in either August or September, he added.

He said the in-laws arrived recently.

Wednesday night he woke up to the sound of two pops. His daughter asked if he heard the sound. Then he heard more pops.

He thought the sound was coming from Lark Ellen Avenue where they had heard fireworks before. He also heard the suspect’s youngest child crying.

The neighbor noted that no one from inside the house came out seeking safety or assistance.

“Nobody asked for help,” he said.

Another neighbor who refused to be named said he saw police rarely in this quiet neighborhood overlooking North Lark Ellen Ave.

Wang is being held at West Covina jail on a $2 million bail. He’s scheduled for arraignment Friday at Pomona Superior Court.

Online court records show Wang was a defendant in a 2013 case filed at El Monte Superior Court. But there were no details given about the case.