Witness said 4 shots, one of which the officer said was by Gray.
The SUV has no apparent damage so perhaps the driver has gotten out prior and met Gray mano-a-mano or the latter was a poor shot or .... yeah, come to think of it, I say the former is closer to what happened, which is consistent with his family being in there but ... I suppose both could be true.
On a busy freeway, someone must have witnessed the showdown. The witness who appeared on TV did say he didn't see what went down.