Follow CBSDFW.COM: Facebook | Twitter

ARLINGTON (CBSDFW.COM) – The attorney for the family of Christian Taylor, the teen killed by an Arlington police officer last year, has filed a letter with the Department of Justice asking for an investigation.

READ MORE: Dallas Police Searching For Road Rage Driver Who Shot & Killed Man Along North Central Expressway

Brad Miller, a rookie police officer, shot and killed 19-year-old Christian Taylor in August 2015 during a break-in at an auto dealership in Arlington.

Brad Miller (credit: Arlington Police Department)

Brad Miller (credit: Arlington Police Department)

The teenage college football player was unarmed at the time of the shooting.

Officer Miller was fired soon after the incident.

Here is the letter from the family’s attorney to:

READ MORE: Haltom City Police Say Charges Likely For Tanner Dodson, 18, After 2 Separate Hit-And-Runs

Taylor was vandalizing cars at a dealership when it was closed.

Earlier this month, a grand jury decided not to charge Miller with a crime.

The family’s attorney asked the Tarrant County Criminal District Attorney to refile charges against the former officer but Sharen Wilson declined.

Wilson explained, “By all accounts, Taylor was acting erratically, and in a manner dangerous to himself and the officers on the scene.  When confronted, he continued to aggressively advance on the officers even after the attempt to Taser him.”

(©2016 CBS Local Media, a division of CBS Radio Inc. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)

MORE NEWS: Texas Deputy Busts Mexican National With 46 Pounds Of Methamphetamine In Collin County