I was asleep.
1) True, Zimmerman was told not to go after Treyvon. The reason why he still proceeded to do so is debatable, but there was no evidence whatsoever that Zimmerman was racially charged in this decision. I find it reprehensible to, apropos of nothing, jump to conclusions of racism, especially when there is evidence to the contrary.
Zimmerman selling his gun for so much is not irrevocable evidence that he was a sick freak who viewed it as a sort of trophy. Recently, Zimmerman has been down on luck, unable to find a job and unable to provide for himself. When the media paints you to the entire nation as a racist murdering monster who kills black boys for wearing hoodies and buying skittles despite all evidence to the contrary, this sort of thing happens. It's clear he's at the point where he'll sell his only means of protection if it'll get him some lunch money.
Just as him selling his gun for thousands of dollars so he doesn't starve not proof, nor does him viewing his gun as a potential heirloom evidence of racism or psychopathy. He easily could have wanted to pass down his gun before he used it to defend himself that night and the events that transpired then couldn't have changed his mind.
2)Nothing is beyond discussion. Silencing those who disagree with you and placing them in the immoral category by saying things like "this incident is not debatable" is a tactic that played a vital role in Hitler's ascension to power. Now, concerning Tamir Rice, I reply with a quote from the very video I posted on this thread: "this was a kid who had a gun with the tip removed. It
looked like a real gun. Hanging around in a park where there is
consistent gang violence."(4:46)
From there, someone called in a complaint and when police arrived, they saw the boy pointing what appeared to be a real gun. In a knee-jerk reaction with the cops thinking their lives were in danger, they fired. There were obviously mistakes all around concerning this case but to chalk it all up to racism is...below us as sensible adults. Now, as a single child growing up I cannot fathom the loss of a brother. I did, however, lose an older cousin to the gun of a cop. I felt sad at his death and I was young at the time so I never looked into it. Truthfully, I would be infuriated if people began using my cousin's death to start a race war against all white cops. Do not simplify this to "boy shot for holding a water gun while black".
3) He was a gangster who cops confronted after he had robbed a bodega. In an attempt to escape, he assaulted the cop in his car (blood evidence inside the police cruiser) and, according to Black eye witnesses, proceeded to run away, turn back, charge the pursuing cops and get shot to death. BLM and the media, however, have said that he got shot in the back and/or with his hands up thus the "hands up don't shoot" malarkey.
4) The judge who let the cops in this case go free did so because the prosecution didn't show anything bad. It didn't show that the driver meant for anything to happen to Gray. The only thing the state had shown was failure of duty and not buckling Grey in as he was supposed to. There was no evidence of criminal negligence or that the driver was aware or should have been aware that Grey was hurt in the first place. Saying that the driver didn't buckle him in specifically because Grey was black and he wanted to sever his spine with unnecessarily sharp turns is, again, egregiously jumping to conclusions to which there is no evidence for.
And for that last part: citation desperately needed. You're making a seriously wild claim here to say that all the "good cops" are gone because corruption is so rampant in the system that they either get fired or quit. The burden of proof is on you her and until sufficient evidence is provided, I disagree.
Here's the link to the video on YouTube
You must be registered for see links
Sorry Fearmonger, I know you have set out the rules so I don't mean to go off topic 
