You definitely need references for your claims there. As far as I know, and I'm not a Noam Chomsky expert, he has compared the media attention given to massacre

You definitely need references for your claims there. As far as I know, and I'm not a Noam Chomsky expert, he has compared the media attention given to massacres in some parts of the world with massacres in others. From what I've read of him he didn't say that they didn't happen or that they weren't awful. But like I said, I'm not expert. And from the bits of Chomsky's writings and interviews that I have read I certainly don't agree with all of his opinions although I do find him an interesting man. But you certainly need to provide evidence when you make claims like that against anyone, it's just not acceptable to make the statements on their own.