A Florida man was convicted of first-degree murder Wednesday in the 2012 death of 17-year-old Jordan Davis, who the man shot and killed following an argument over loud music.

Michael Dunn, 47, had previously been found guilty on four counts in Davis’s murder, including attempted second-degree murder, during his trial this past February. His original jury, however, was unable to come to a decision on the first-degree murder charge. The Florida jury finally reached a verdict of guilty after several hours of deliberations Wednesday following a retrial.

Dunn, who could now face life in prison, showed no emotion when his verdict was read, according to local newsreports.

During his trials, Dunn argued he shot Davis out of self-defense, claiming he saw the teen flash a weapon before opening fire. CNN reports detectives did not find a weapon matching Dunn’s description on Davis’ body or in his car.