The bottom line here is that the media, in pursuit of sensational stories, is making the problem worse. The bottom line in this case is pretty straightforward. A black thug was walking with some friends in the middle of the street, holding up traffic. They did this right in front of a police cruiser. When the cop told them to get out of the street, one of the guys, a 6' 4" black man attempted to grab the police officer's sidearm through the window of the car. The police officer understandably fired on him. Nobody denies these basic facts. The part of the story where things become touchy is whether or not the guy in question was trying to surrender when the police officer got out of the car and shot him again.
The rest of this is pretty much icing on the cake. Apparently the guy in question was just involved in a violent crime shortly before he was told to get out of the middle of the street. The cop involved however had no idea about that, and simply told him and his friend(s) to remove themselves.
The major point of the case comes down to whether the cop had control of the situation and executed the guy when he was surrendering, or if the situation was out of control and the cop acted reasonably under the "continuum of force". To explain that situation understand that there is more involved than just the police officer and the guy in question, the reaction of the guy's friends also play into this. After all if your facing multiple potential opponents it skyrockets the continuum of force quickly because the more people your facing the less likely you can control the situation with anything less than lethal force as you can only do so much with Mace and a PR-25, even a Stun Gun is generally only good for one dude. This is why so much effort is being made in checking out these witnesses, after all if the cop had a reasonable belief that the people this thug was with were going to back him up, he was perfectly justified in dropping the guy, even while he was surrendering, and turning his attention (and firearm) to cover other potential threats. After all just because a guy has been wounded and says "I surrender" doesn't mean he's not going to turn around and tackle you when your busy with his friends. Understand lethal force was already attempted (going after the sidearm of the police officer counts) in the situation, and the big question comes down to how the other people on the scene were acting, and whether any threats were made.
Before your quick to judge, understand as a police officer you want to go home alive at the end of the day, and your putting your butt on the line to ensure law and order. If any one of us were in a similar situation we might have done the same thing if we believed other people on scene presented an immediate threat and we could not otherwise secure a guy who already attempted to grab our gun.
At the end of the day this is all about a bunch of rabble rousing black racists screaming "OMG a white police officer shot a black guy" and demanding the cop basically be sent up the creek immediately. The authorities in the meantime have been investigating the situation, like they are supposed to do. Mob justice is the exact opposite of what the law is supposed to do. In protest of reasonable action, the black community decided to engage in massive scale looting and vandalism, which warranted a police crackdown. Continued rioting has of course lead to the establishment of a curfew. Despite claims of "non violent demonstrations" the bottom line is that the desired attention was gained (internationally in fact) and what's more these demonstrations are doing little but riling people up to engage in yet more violence. The right to free assembly does not include your ability to riot, or cause havoc, it generally exists to prevent the police from busting up gatherings on private property, deciding that someone's meeting/club/party makes them nervous because there are too many people and deciding to shut it down. When it comes to demonstrations on public property, there are rules and regulations for that. The US tends to be fairly open minded when it comes to un-registered protests and such, but when it turns into this kind of violence and havoc the laws are brought out. Chanting "we're here non-violently" in a way to cause confrontation with something like a police curfew in no way justifies it.
Likewise there is such a thing as freedom of the press, but at the same time there are laws against using the press to do things like incite riots, violence, interfere with due process, and provide a platform for slander and libel. The bottom line is the media has not really been impartial on this. The authorities, like usual, are remaining fairly quiet about their side and their findings until the actual hearing/trials. In the mean time your looking at what amounts to a media echo chamber where person after person is brought out to pretty much attack the police or the situation, when really nothing has been done or decided yet. The media is more or less taking an approach that the police should immediately cruicify this officer or something in the way it's been covering the case. Neutral coverage would encourage patience until the investigations are complete, and to fully hear the other side when it's presented. As it is the attention garnered has already brought in higher levels of authority (both state and federal) to double check things to an extent you normally don't see happen, so it's not like the system isn't responding.
If your a reporter that doesn't give you the right to stir up a tense situation, and try and cause more riots, and frankly trotting out there so you can make a scene of being taken into custody for the sake of sensationalism serves no one's interests but your own. As much as a lot of people would like to think of the press as the good guys, understand it's a business nowadays, and there is more money and coverage in turmoil and controversy than in peace. At a certain point you do have to take some action against the media... that becomes a touchy subject, but that's the way it's always been. A press pass does not mean you have free reign to engage in libel and pour fuel onto the flames, and quite possibly get more people hurt and killed. I'd agree with claims of a "media blackout" or interfering with the right to a free press if we weren't already painfully aware of the situation, but we are.
As far as issues with a mostly white police force, arrest statistics, etc... none of that is especially relevant. Just like the fact that the guy who was shot was a thug who just attempted a strong arm robbery is irrelevant, because the cop in question was not aware of that at the time. You can throw characterizations around back and forth, in the end a lot of this is likely to come down to whether or not this guy's friend, and the witnesses, were visibly hostile towards the cop when this all went down. On a lot of levels these racial tensions that the media is stirring up could very well see the cop aquitted, or found innocent, because a lot of anti-white bigotry is on display, combined with a lot of people citing a "history" or views of the police force being discriminatory. That could have motivated other people at the scene, and honestly it doesn't matter if maybe the force has been discriminatory in the past, all that matters is what happened in that specific incident. The cop in question is not under investigation for anything other than when and why he pulled that trigger right then and there, meta-issues, and politics have nothing to do with it.
Do I think the cop is innocent? I honestly have no idea. I merely understand why this situation has turned out like it has. Like most investigations it's being kept quiet for obvious reasons. A lot of factors have to be looked at in how things went down, it's not a simple matter of "did the cop shoot the guy" or "did the cop shoot the guy while he was surrendering" it comes down to other things that might have been happening that affected the entire incident.
I'll also say that it's nice to throw around statistics and unassociated "facts" which are so loaded by the situation as to be more or less pointless and act as just more gasoline on the fire. At the end of the day affirmative action in law enforcement is a bad idea. The big question I've had in this case is how many members of that black community have sought a career in law enforcement? I point this out because I was a Criminal Justice major, albeit with a focus on Forensics as opposed to going for regular law enforcement. The days where you just show up at the station and say "I want to be a cop" are pretty much gone (though I guess it can happen in some places) they look for very specific things. When I took my various classes there were a few people of color involved, but not a lot of them. If you look at the breakdown for this situation I doubt you'll find many black guys around that area with Criminal Justice training from college, who tried and failed to get into the police department. What's more another thing you'll probably find is that a lot of people on the force were probably selected because of training, and probably came/were recruited from different areas. I can't guarantee that, but the bottom line is people wanting to do law enforcement usually have to travel to where they are going to work, and police departments increasingly need things like job fairs and/or to recruit through schools (encouraging people to take Criminal Justice, or cut some kind of deal with a Police Academy for education in some areas). If you really look at the situation you'll probably find that despite there being few black guys in the local police department, most of those guys weren't exactly hired from the local area initially, which is why they aren't representative of it, you have to get who you can from *qualified* people. What's more it's interesting to note that the "more diverse" cops they made a show of bringing in are State Troopers, for the most part being a State Trooper is a far better, and more prestigious job than being a local cop (though this can vary depending on how generous a given town or district is). Ask a lot of the black guys who showed up for the state if they would like to work for the town instead, they will probably say "no". Indeed it's quite possible that a lot of the dudes who work for that local PD are guys who for whatever reason didn't qualify or get accepted for the State Troopers. While it's going into rambling territory (and again like everything it varies from place to place) one other thing you see happen is for State law enforcement to semi-retire for a higher rank in local law enforcement. For example you might put 20 years into the state and hit a wall where your not going to advance anymore, but then take a job where you can be a Captain or even a Chief and run the show for a whole local department. That's how a lot of towns also recruit, looking for people retiring or getting stonewalled in other departments.
At the end of the day time will tell how it's going to turn out, it's a bad situation, but honestly I think the problem is that the press has gone well beyond coverage and being "impartial" to trying to leverage the situation and ensure they can get as much "sensational" stuff to broadcast as possible.