Condemned killer Kenneth Mosley faces execution Thursday for the February 15, 1997 killing of a police officer during a bank robbery in Garland.
Garland police officer Michael Moore was called to the bank after a teller recognized Mosley from a bank robbery a month earlier.
Moore was in full uniform when he asked Mosley to remove his hands from his waistband.
A struggle ensued and the two crashed through a glass window.
Witnesses heard several gunshots before Mosley re-entered the bank through the broken window.
Mosley was shot in the wrist by a second responding officer and was arrested in the parking lot.
Mosley's lawyers claimed he was trying to surrender the weapon to Moore when it went off five times with four shots hitting Moore, one above his protective vest.
At trial a witness told the jury she saw Mosley stand over Moore and continue shooting.
At the time of his arrest, Mosley was wanted for holding up a Dallas fast food restaurant where he once worked.
Moore, 32, died later that afternoon.
Mosley will be the 19th convicted killer executed this year in Texas and the second this week in the nation's most active death penalty state.
More: Dallas Morning News