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Ontario police: Apparent botched home invasion robbery led to triple homicide

Steven David James Carter, 34, arrested after an Ontario altercation which left three dead.
Steven David James Carter, 34, arrested after an Ontario altercation which left three dead.
Ontario Police Department

A man has been arrested on suspicion of murder in connection with a triple slaying that took place in an Ontario neighborhood.

Steven David James Carter, 34, of Upland was taken in for questioning and arrested early Tuesday morning, said Sgt. David McBride.

Police are still investigating, but it appears the three men died in what appeared to be a botched home invasion in a middle-income neighborhood early Monday morning, McRide said. They are not clear exactly how the men died.

“First off, we don’t know it was Carter that did the shooting. We just know he was there with the two dead men,” McBride said. “This could have been a gun battle between the victim, who resided at the location, and the three subjects that came there to do the home invasion robbery, which will probably be a likely scenario, but we don’t know at this point.”

The sergeant added that the altercation may have been drug-related because a large quantity of marijuana and cultivation equipment was found in the home. 

It appears Carter knew two of the men who were shot and may have gone to the home with them to rob the resident, 31-year-old Brandon Perez, who was found dead, the sergeant said.

One of the other men found dead was identified as 25-year-old Albert Lamar Thomas. The identity of  the third person found dead – a male in his 30s – is being witheld until his family is notified. 

Police were called about 6:15 a.m. Monday about an unresponsive male found in the driveway. The man was dead and had gunshot wounds. They went inside the house on the 1000 block of South Magnolia Avenue and found two other men had been shot to death. 

Arrest came after detectives gathered evidence at the scene. McBride says Carter was cooperative with the investigation.