According to the local ABC news outlet, the entire incident was caught on the dash board camera. Since it hasn’t been released or even mentioned by the police spokesman, I’m guessing it’s ambiguous at best. Because of the secrecy and changing stories by the cops, I’m guessing it’s a classic case of DWB- driving while black. I don’t believe the marine was speeding. I don’t believe he crashed through the gate either. I’m guessing the marine was doing what he did many times before- going to the high school track early in the morning to walk with his kids. The cop spotted him, hassled him (at least in the mind of the marine) and, when the marine objected to the treatment and tried to drive away- the cop shot him. Of course, I could be completely wrong, but I love to play Sherlock Holmes.
Recall when the cops shot the West Point graduate at Cosco in Nevada? That also was supposed to have been on film. The film has yet to appear.
The Marine pulled into the school, possibly accidentally hit a gate, damages his nice clean looking SUV, the deputy pulls in behind him, he's already pissed his vehicle was slightly damaged, walks off, ignored the deputy's command, walked back, got in his vehicle, ignoring the deputy due to being pissed off, and the deputy opens fire thought the driver side window.
Pure 100% speculation on my part.