Nearly four years after a tragic school shooting at Robb Elementary School in Uvalde, Texas, left 19 children and two teachers dead, former police officer Adrian Gonzales is standing trial to determine if he is guilty of failing to act in order to save their lives. On Friday, January 16, it was revealed in court that the 18-year-old shooter was able to fire 117 rounds before Gonzales, 52 -a former officer for the Uvalde Consolidated Independent School District - breached the school. A reported 173 rounds were shot during the mass shooting.