Investigators said Anwar Ghazali, 28, drew his weapon from the right side of his body, then exited the store. Ghazali then ran after the teenager and fired several shots at him.
Witnesses on the scene said Ghazali then walked back into the store and said, "I think I shot him."
Officers said Ghazali never called the police after he shot 17-year-old Dorian Harris.
When Ghazali was originally arrested, he was charged with first-degree murder. However, he's been convicted of a lesser charge, second-degree murder.
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