Utter waste of time. Why would you riot in this country? Waste of time, it achieves nothing.
I'm not going to say the police were right to kill this bloke, but why does he have a gun? The police shot him dead, he's shot at them already. As far as I'm concerned he has lost the plot.
I don't know anybody who would fancy getting involved in this riot or, as far as I know, who owns a gun. So, to me, this whole thing is barmy. If I pointed a gun at the police I'd expect them to blow me to hell. I wouldn't expect anyone to then riot in my name.
I bet there's nobody at the riot with a stake in society.