The second time Wilson pulled the trigger, the gun did fire. Wilson told investigators he thought the bullet had struck Brown in the hand, the source said. Broken window glass was everywhere, and blood was on the door, the gun and Wilson’s hands. At the time, Wilson said, he wasn’t sure whose blood it was.

The struggle continued, and Wilson attempted to pull the trigger twice more. The source said Wilson thought Brown’s hand may have interfered again. Wilson was able to fire a second shot, and Brown ran.

Wilson used his radio to report that shots had been fired and ask for additional cars, but during the struggle, his radio had been switched from the Ferguson channel, the source said.

Wilson said he had gotten out of the SUV and chased Brown.

The source said Wilson did not recall yelling or saying anything then, but Brown had stopped and turned.

Wilson said Brown had not had his hands up; his left hand was slightly out, fingers pointing down. His right hand was grasping his shirt. Then, Wilson told investigators, Brown began running toward him.