An off-duty suburban Dallas police officer who fatally shot a 16-year-old and wounded another juvenile has been arrested charges of murder and aggravated assault.

Authorities say that off-duty Farmers Branch officer Ken Johnson was taken into custody Wednesday night by Addison, Texas, police officers and is being booked into Dallas County Jail.

Officials say after Johnson saw a vehicle being burglarized in his apartment complex parking lot, he gave chase when the suspects fled. After the suspects' vehicle spun out about a half-mile away in Addison, an altercation led to the shooting.

Johnson's attorney has said he feared for his life.

Addison police Chief Paul Spencer said in a statement Wednesday that there was "probable cause" to arrest Johnson but that the investigation will likely take several more weeks.