Police Gun Down 8th Grader In Texas

A 8th grader was gunned down at a middle school in Brownsville, Texas. The police arrived and found the 8th grader carrrying a pellet gun. He pointed the pellet gun at the cops, disobeyed several orders to drop the weapon and was gunned down by a hail of bullets from the police. Does this count as police brutality or the cops doing their job?