Ilan Halimi was tortured and murdered by a gang apparently of Africans from the Ivory Coast in an attempt to extort money from his family. The main suspect at least appears by his name to be a Muslim. It was clearly a racist murder, and Jews were deliberately targetted.

There has been an upsurge of racial violence in Europe in recent years. Jews are of course not the only minority targetted- West Indians, Africans both north and sub-Saharan, Asians of all kinds, Gypsies (Roma) have all suffered too. And of course there has been violence between minorities and the majority population- Paris, Oldham, Bradford...

I believe it has been convenient for governments not to take too much action against racism. It keeps people divided, you can always "clamp down on asylum seekers" to gain a few votes when you need them. As long as most people are getting worked up about foreigners, they aren't asking questions like "who ate my pension", or "why does my kid need a degree to stack supermarket shelves".