(CNN) — An off-duty Farmers Branch, Texas, police officer was arrested Wednesday in connection with a Sunday shooting of two juveniles, one of whom died.
Ken Johnson was arrested on one count of murder and one count of aggravated assault, the town of Addison said in a statement.
He was being booked into the Dallas County Jail.
“Based on our investigation thus far we had probable cause to make the arrest this evening,” said Paul Spencer, Addison’s police chief.
“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,” he said.