Maricopa County's top prosecutor may seek the death penalty against Danny Ledezma Martinez, the repeat offender who shot and killed Phoenix Officer Travis Murphy with an AR-type rifle.
Martinez, 30, has been charged with first-degree murder, unlawful flight from law enforcement, burglary and misconduct involving weapons.
He is a convicted felon with a long criminal history that includes sexual assault, burglary, kidnapping, aggravated assault and DUI.