It's hard to remember now, but for a brief period after 9/11, the US was the darling of the world. That goodwill dissipated two years later when we invaded Iraq. But, for a while, it was real.
The killing of the 12 French journalists should certainly help all of the anti-immmigration parties around the Continent, and in particular Marie le Pen's National Front in France.
Native Europeans will now feel more positively about the nationalist parties, who will be seen less as aggressors and more as defenders of their countries' sovereignty.
Stephane Charbonnier, the chief editor of Charlie Hebdo, is an unlikely-looking hero:
But, a hero he is. According to the NY Post article linked above:
Charbonnier was famously quoted in 2012 after an earlier controversy saying, “I am not afraid of retaliation. I have no kids, no wife, no car, no credit. I prefer to die standing than living on my knees.”
Now, he'll have more influence than ever.