The kid's background and mental disorders obviously play a big role in how he reacts in different situations. I get that, and I can understand why he gets violent in a situation where there aint really no need to get violent. At the same time, I don't think he should have been on that bus with that particular bus driver. I don't know all the background information on this, just what I've seen in the video and what I've read other folks post. But if that was a bus full of emotionally disturbed kids, then they fucked up by having that little old lady who is obviously not trained on how to react in a situation like that to diffuse the problem, or even protect herself when needed.
I value human life much more than I value the lives of animals, but I'm just sayin that I raise dogs. If any of my dogs show any kind of sign of human aggression, then I will cull that mothafucka. One, I aint about to feed an animal that might could act violently against humans in society, and two cuz that dog is obviously unstable and probably suffering by being alive so he's better off dead. I aint saying necessarily that we should kill this kid as a society, but he's definitely unstable and not ready to be functioning in a society according to the norms of what we define as acceptable behavior. He was on that bus saying "call the cops, I don't give a fuck." so he obviously understands that his actions lead to consequences, he knows that shit was wrong but he don't give a fuck. Aight, well then you know that he can't operate in society normally, so either lock him the fuck away or keep a tight ass leash on him if you gonna let him live in our world. You wanna give him some emotional therapy and try to correct this behavioral disorder, cool but you gotta keep the rest of the population safe at the same time cuz he was real blatant that he dont give a fuck if you an old lady.