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Bob Mack, Pool, Associated Press
Shawn Atkins, currently in prison on theft charges, testifies in the trial of Michael Dunn in Jacksonville, Fla., Thursday, Feb. 6, 2014. Atkins provided an eye witness account and the license tag of Dunn's car to police. Dunn is accused in the shooting death of Jordan Davis, who was outside a store with friends in November 2012.

JACKSONVILLE, Fla. — An investigator has testified that a Florida man on trial for murder fired nine times at an SUV with four teens in it after an argument over loud music outside a convenience store.

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One of the bullets fired into the rear door killed 17-year-old Jordan Davis of Marietta, Ga., in November 2012.

Michael Dunn is charged with first-degree murder, three counts of attempted first-degree murder and one count of shooting or throwing a deadly missile. The 47-year-old's trial continued Saturday in Jacksonville. He says he shot Davis in self-defense.

Veteran Jacksonville Sheriff's Office crime scene investigator Andrew Kipple testified that he found nine bullet holes in the car. Kipple also said he found cups, a cellphone and other items in the car, but nothing that would be considered a weapon.