Don't you think we should perhaps not make light of this until we find out whether anyone has been injured or killed? Or doesn't that matter any more?

This has happened many times before here, also in Tensta and Husby. Riots in this part of the city are quite common and burning cars are more or less a daily occurrence. There's a fairly shady area close to where I work as well, when I first started in late 2013, there would be 1-2 burned out cars on the parking lot outside the mall after every weekend.

Edit; no one was killed but two were injured, one was a journalist who was jumped by about 12-15 men. Lots of journalists have been attacked in this part of the city. It becomes a self fulfilling statement when people say that people here are violent, and the local citizens are outraged and the trash talking and resort to violence... They have also been know to call the police on fake missions so they can ambush them with rocks and even a hand grenade last year, destroying ambulances is also quite common in this area and ambulances are adviced to request a police escort.

"But it is not enough for me to stand before you tonight and condemn riots. It would be morally irresponsible for me to do that without, at the same time, condemning the contingent, intolerable conditions that exist in our society. These conditions are the things that cause individuals to feel that they have no other alternative than to engage in violent rebellions to get attention. And I must say tonight that a riot is the language of the unheard. And what is it America has failed to hear?...It has failed to hear that the promises of freedom and justice have not been met. And it has failed to hear that large segments of white society are more concerned about tranquillity and the status quo than about justice and humanity."
- Martin Luther King Jr.

Isn't that the very thing Trump said. He was talking about a FoxNews report they did the night before or something that was talking about how Sweeden is now seeing what you described above and more, such as rapes, ect due to the immigrations.

The media does a whole nit picking of his wording to try and paint what he said as him saying there was a terrorist attack the night before, to descredit him, draw aways the peoples attention from a problem, ect.

All this rioting does is add some credence to what Trump was saying. Immigrants are not mixing well with Sweeden and crime is getting out of hand.

this is very suspicious

EDIT: Nah, I'm not even going to bother. 

Troublemaker should be deported. You can't behave in a foreign country, then it's better for you to go back to your own.

... until someone close to you gets hurt or killed..

It doesn't mean that riots are good. It's saying that riots are a sympton of the problem, and not the root of the problem itself.