Dunno if it's a twitter rumour but I read the Asian family were getting racially abused,and the police waded in and they retaliated.
Bottom line is whatever happened,volleying a fella in the head whilst he is on the floor is wrong.And tasering someone who is just standing there is wrong.
Like I said said it's yet another incident which shows just how much racism has become ingrained in our society
If that was a white fella ,the reaction would be completely different.