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ADDISON (CBSDFW.COM) – The Farmers Branch police officer accused of killing a teen burglary suspect while he was off-duty was arrested and charged with murder and aggravated assault.

“Based on our investigation thus far we had probable cause to make the arrest this evening, ” said Addison Police Chief, Paul Spencer in a statement. “But this is a rapidly-evolving situation and it remains an active investigation. Therefore, we are refraining at this time from discussing the evidence collected thus far or about the specifics of this case. We expect there are still several weeks of additional investigative work to do.”

The shooting happened at a gas station at Marsh Lane and Spring Valley Road just before 7:30 p.m. Sunday night.

Detectives said Officer Ken Johnson saw someone burglarizing a vehicle at a nearby apartment complex. The suspects took off, but Johnson went after them in his own vehicle.

The chase ended in gunfire, with the driver, Jose Raul Cruz being struck and killed and the passenger suffering injuries as well.

Officer Johnson was assigned to the patrol division since joining the Farmers Branch Police Department in March of 2015. Prior to joining Farmers Branch, he was a police officer with Dallas Area Rapid Transit and previously served in the United States Army, according to a news release from Farmers Branch Police.

Officer Johnson was placed on administrative leave with pay, while the Department conducts an internal administrative investigation of the officer’s conduct.

The Addison Police Department is working on the case with association with the Dallas County District Attorney’s office.

Officer Johnson is currently at the Lew Sterrett Justice Center in Dallas.

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