Racist Murderers In The United States Of America

The tragedy of Trayvon Martin cannot be understated.  An innocent young man was shot down for, apparently, little reason other than the color of his skin.  This was a terrible sort of event which continues to be repeated in the United States and in other parts of the world.  Race-based violence is, unquestionably, one of the most odious aspects of daily life in many places.  If society is to truly advance in any meaningful way... this is something which must be adequately addressed. 

But there is something about this specific case which strikes me as peculiar.  I find it interesting that the highest elected government officials have joined the chorus in calling for justice regarding this incident.  Of all potential cases to capture the imagination, I find this one to be relatively arbitrary in its uniqueness.  Young men of color are being shot down every day in modern America and, as horribly tragic and unfortunate as this particular instance was, it just personally doesn't shock me any more than many other cases.  What is it about this case that's captured the attention of the media and government officials?