I'm not surprised, Moonstar and people should be very concerned . The EU have been supportive of the violence in Syria, even encouraged it due to hopeful 'regime change' , and now some of ISIS and others have been moved on. How they got to France , we wouldn't know , probably via Turkey after they were rounded up, but the Chechens were commonly known as the rebels and the 'head choppers' in Syria.
When a country is divided, it's an ideal opportunity for these groups to move in, just as Al Qaeda are promoting BLM in USA and offering assistance. It's time all this sort of thing was on the front pages , not hovering in the background where people don't look or are simply not interested enough to see what is in front of their noses.
It seems the same sort of incident that started the Syrian war , except it was to do with anti government graffiti in that case, but still using a teenager to trigger a situation.. Good excuse for everyone to become engaged over a kid. They should have brought the army in straight away.