[superdad]

He should have someone go back to the location and see if there are any security cameras. If so, he should get copies of the tapes, hiring an attorney if necessary. You do not want to get into a he said, she said fight with law enforcement.

[batter]

He says he was across the street from the CVS. That would be a good place to start to ask for potential security cameras.

Interestingly enough, faq just mentioned that Treacher tweeted that the Police and the Secret Service have confirmed he was hit by the Secret Service. I wonder if those vehicles have dash cams?...