CNN — Michael Dunn, a Florida man accused of killing a teen in 2012 following an argument over loud music, has started testifying in his murder trial.
Dunn's decision to take the stand comes after the prosecution rested its case Monday after four days of testimony.
Dunn, 47, is charged with first-degree murder in the fatal November 2012 shooting of 17-year-old Jordan Davis in a gas station parking lot in Jacksonville, Florida. The teen and his friends were sitting in an SUV next to Dunn when an argument quickly led to Dunn pulling his gun and shooting nine times into the vehicle, killing Davis.
Dunn also faces three counts of attempted first-degree murder related to three other teens -- Leland Brunson, Tommie Stornes and Tevin Thompson -- who were also in the vehicle with Davis but survived the shooting.
Dunn has pleaded not guilty to all the charges and told police in an interrogation following the incident that he acted in self-defense after seeing what he believed to be the barrel of a shotgun or a stick in the teens' red Dodge Durango. Police said no weapons were recovered from the teenagers' vehicle.
HLNtv.com's Amanda Sloane and CNN's Eliott C. McLaughlin contributed to this report.
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