As mentioned in my previous post, I did watch the video. We clearly have two different perspectives. I see a bully who was looking to shoot someone, and who harasses women and children when they're in vulnerable positions (ie: sitting in the passenger side of a parked car with the driver, and presumably the keys, inside a building out of eyeshot). He certainly didn't wait for the actual driver, who parked the car in that spot, to come out and discuss it with him, and he certainly was harassing her, as he could have pointed out that the car was parked in a handicap spot and left but instead continued to speak to her, gesturing in a way which she could reasonably feel threatened by.
I'm reminded of the students in my preschool class who would pick and pick and pick at other children, and then the second someone looked cross-eyed at them, they'd come hide behind me. The shooter was a bully who was looking for an opportunity to shoot someone. And he got it. And now children don't have a father.
Dude should have minded his own business, alerted the workers of the store if he's ever so concerned, and nobody would have gotten hurt. He's got entitlement issues.