These 3 photos are all from the same match. I'm not saying this lessens the gravity of the episode but you're clearly taking advantage of people not knowing how that phenomenon developed. These "tifosi" were heavily criticized and promptly alienated from the Curva Sud.
Now, I'm not saying there aren't right-wing supporters in the Curva Sud, and I'm not saying that every Laziale is a fascist either. But we all know Lazio has quite a thing for pseudo-fascist tifo. For example: Revelling in the club's fascist past, Lazio 'Ultras' are among the most feared in Italy, Repubblica dossier on right-wing ultras (it), Wikipedia article on SS Lazio fans, 'Rivalries' chapter, Gli insulti e i cori fascisti dei tifosi della Lazio (it), "Nigger, bastard, Laziali hate you" to Cissè (it), etc.
The point I was making is different: I just hate this "Je suis Charlie" bandwagon on which everyone is jumping in, especially when these people don't even know what Charlie Hebdo is all about. So, when I'm seeing the Pope, the right-wing politicians or SS Lazio saying "Je suis Charlie" I lose my shit.
What Garcia did is different – first, he's french and has parents and family in Paris, so he can be much more closer to the tragedy than most of us. Secondly, he's expressed his support as an individual, not in the name of AS Roma. That's a big difference.
And please, tell me: why you're not showing your Lazio flair?
