JACKSONVILLE, Fla. -

A Florida man charged with first-degree murder in the death of a teenager following an argument over loud music coming from the teen's car will not go on trial until next year.

A Duval County judge on Thursday granted a defense motion to delay 46-year-old Michael David Dunn's trial, which was set to begin on Sept. 23. The judge said the trial will likely occur sometime in January or February.

The Florida Times-Union reports that defense attorney Cory Strolla said more than 100 witnesses need to be interviewed.

Officials say Dunn parked at a Jacksonville gas station in November next to the vehicle where 17-year-old Jordan Davis was sitting with three other teens. Dunn complained about the loud music, and they started arguing. Dunn told police he thought he saw a gun and fired into the vehicle. Davis was fatally wounded.