It's really awful, the people who have been injured, possibly seriously. Sounds like he panicked, speculation about drugs and drink appears to have fallen away to be discounted. I read somewhere he was merely dropping off a friend and took the wrong route following the ambulance into the crowd where a person was having a heart attack, by which time he may have realised he'd made a massive mistake and injured some people. It's understandable also how the crowd may have turned on him, given so many unfortunate incidents these days of cars being driven into gatherings, that would have been their perception understandably, hence an acceleration of a really unfortunate chain of mishaps. How awful for those that were injured, his family and the man himself who seemed to have an un blemished record. I feel sorry for all of them. Such a case of "if only the clock could be turned back"