We see this again and again. A black male who captures the imagination of the nation must be degraded by the right. He must be turned into something else, some Other. President Obama can't simply be an educated black man from a lower middle-class background with whom they disagree ideologically. No, he's got to be an enemy, a foreigner, a n****r. It's hard to denigrate someone who might be like you, conservatives. But it's easy to attack a n****r because he's just a n****r. Or a coon....Soon we shall judge his parents by not by the content of their character, but the quality of their counter-tops.
...Now, the niggering of Martin is in full swing as fake photos, school records, Facebook postings, and even his tweets are put under the microscope. A police report that portrays Martin as the initiator of violence has been leaked. And the news media is going along with the victim-blaming that is being spun out by authorities and the right, allowing that it's in any way relevant that Martin was suspended from school once, for instance.
The n****ring of Trayvon Martin works as every n****ring does. It gives conservatives cover for their belief in the innate goodness of guns and the innate badness of anyone non-white who just dresses vaguely gangsta. It gives racists, open and closeted, a reason not to care. It allows them to see him as deserving of some punishment in general: if Zimmerman hadn't killed him, this narrative goes, well, fuck, chances are Martin would have been a criminal and better to get it over with now than pay for his incarceration.
Bingo!
Rude Pundit sums it up perfectly, in language that is naturally "rude":