Silenced?

This page has a twitter account associated with it, and this past week I saw may hashtags demanding justice for Renisha McBride. 

As I followed the tweets from my followers, I found that we had a case similar to Trayvon Martin.  An African-American woman, who had been in a car accident, knocked on a door of a house in a Detroit suburb.  The owner of the house shot and killed her.  To the best of my knowledge, the Dearborn Heights police department is in the process of gathering evidence and no charges have been pressed. 

Charges may be hard to make stick, as Michigan, like many other states, has a variation on a "Stand Your Ground" law.  But does knocking on a door constitute a ". . .imminent unlawful use of force by another individual," if the individual is African-American in a mainly white suburb, perhaps. 

What aggravates me is the lack of attention this case seems to have gotten outside of the Twitterverse.  Even National Public Radio, long seen as far-left by those who rely on AM-Radio and its cable news outlet, gave no coverage.  MSNBC, through its African-American portal "The Grio", did cover a rally.

Could there be a reason behind this?  Could the issues with the Health Care website and the elections in New Jersey, Virginia and New York City, have pushed this onto the back page?  Could the major networks, have been given orders from the NRA, etc to silence the story?

Or could it be, once again, that America may accept these as another day on the "American Frontier"?