Listen to them here.
The first is from a woman who was behind the pickup truck he fell out of, sustaining fatal injuries.
"It's got a black man on it with no shirt on, and he's got his arm in a cast and black pants on," she told a dispatcher. "He's beating on the back of this truck window. ... I don't know if he's trying to break in or something. It just looks crazy. It's a girl driving it."
The next call comes a minute later, from an man who sees Henry "laying in the road" and "definitely unconscious."