Thanks for the video. I got the opposite impression from it. The crowd is ahead of him. Behind him the sidewalk is sparsely populated. It's not until he is right on the freaking crowd until someone attacks him. Well duh! Why are you driving your car directly into a crowd of people in the first place? That said, anything is possible.
Edit: Okay. I see the argument being made. I guess this guy thought the crowd was going to part and let him go through and when it didn't he decided he didn't want to be Reginald Denny? Oh, and he's active duty military. This probably explains why he was charged with 2nd degree murder and not first degree. I heard on Fox News last night that they were claiming there were "white supremacists" along the road telling him which way to turn and urging him on. That seems to be bullsh*t.