VIDEO: Texas Chief Fires Officer for Shooting of Man at Auto Dealership

The Arlington, Texas, police recruit who fatally shot a reportedly unarmed college football player during a break-in at a car dealership early Friday has been fired for "exercising poor judgment," the police chief said Tuesday.

Christian Taylor, 19, was fatally shot by Arlington Police Officer Brad Miller, 49, after police were called to a break-in report at the Classic Buick GMC dealership at around 1:06 a.m., NBC News reported.

Miller, a recruit officer who was undergoing supervised field training, entered the building alone and without telling other officers, setting into motion a chain of events that led to the deadly shooting, Arlington Police Chief Will Johnson told reporters Tuesday.

Miller told investigators he feared for his safety and thought he would be overpowered, and that he believed he was alone even though his training officer was four feet away, Johnson said.

"This fear and feeling of isolation was the result of his poor decision to enter the building without assistance and without an arrest plan," Johnson said.

Police were called to the dealership after Taylor allegedly kicked in the windshield of a car and then crashed his Jeep into a showroom door, police said.