What's up with all this Trayvon Martin stuff?

First of all, I just want to clarify that I'm NOT a racist. But, how come when a black person is killed by a white guy, the whole country has to know and rally against it. But, hundreds of white people are killed every day from blacks and there is never anything about it it on the news. This country is so fuckin dumb. I'm sick of all the black people always bringing racism into matter. If the kid was white and was killed by a black male, nobody would know. God rest the kids soul, but people need to stop always bring up the race factor when ever a white person does something to a black person.