I think your speculation is pretty close to mine. I don’t think the marine was speeding. I think he was just going to the track with his two kids like he’d done before. A cop who was “writing reports” at 4:30 in the morning on the high school lot, spotted a suspicious black man driving onto the property. The marine maybe hit the gate and was inspecting the damage when the cop drives up and pulls his gun. The marine takes umbrage at being hassled in front of his two kids- perhaps even says a few nasty comments and then decides to get in his car and drive away- and the cop just shoots him in a split second of anger, indignation, panic or whatever. The cop then makes up the whole speeding, leaving the scene of an accident and endangerment bs.
If a mistake is made, a trigger pulled accidentally due to a perceived deep concern, fright etc, ..Well s*** happens... **** happens a lot. Could happen? Yep.. and does happen.
If this is the situation here, which I do not profess to know, they should be upfront.
Simply be honest.
It's much harder to punish someone being honest and human. Speaking the truth sometimes works.
Is there anyone here who believes an accidental trigger pull is not possible during a tense situation?