See the RT report first and then if you still think that it was a one off and not related to a larger social problem then go back to your routine and leave us in peace.
For those still reading watch here a small collection of Migrants Gone Wild.
Pay attention as these are scenes likely coming to a town and city near you regardless of whether you are in France or the EU or not.
The forces of evil have been set loose and they are on a demonic rampage where no reason or negotiations will suffice. Hold on to your women, children, and property or at least be prepared to defend them.