I hope nobody gets killed. Anywhere. But you ask that question as though these people can simply be assumed to be more violent than the police, or more reckless than the system that drove them to this-as if, should they take extreme actions, we can simply assume that those actions are unjustified and that we, children of privilege, are entitled to review their choices as if we are the political equivalent of theatre critics.
Events like Tottenham don't happen in isolation. You have to analyze the whole combination of occurrences, and understand the whole history. We simply CAN'T just say "it's wrong that they did that", and say that as if its ever that simple or that what ever they did can be taken as a singular moment unconnected to the past and the rest of the present.
You and I, Sven, are priveleged. Neither of us could have any knowledge of what it feels like to be powerless. The difference between our responses to this is that I remember that to be the case.
I'm against attacks on innocent people, and especially against children. I do have some limits. But you're not really concerned about morality here. You just want to judge the people in this situation without knowing anything about their reality.
Middle-class people, especially middle-class white people who have never experienced police brutality, or racism, or economic exploitation are obligated to shut up and listen-we have no moral authority in a situation like Tottenham.