So I see you only read the black panther sites for your news.
Regarding point 1:
Regarding point 3:
Of particular note from the Post piece:
Judy Melinek, a forensic pathologist in San Francisco who reviewed the autopsy for the Post-Dispatch, told the paper that one of the officer’s shots hit Brown’s forearm and traveled from the back of the arm to the inner arm, which means Brown’s palms could not have been facing Wilson, as some witnesses have said. That trajectory shows Brown probably was not taking a standard surrender position with arms above the shoulders and palms out when he was shot outside the officer’s car, she said.
Melinek also told the newspaper another bullet struck Brown at close range — and may at that point have been reaching for Wilson’s weapon. The autopsy found material “consistent with products that are discharged from the barrel of a firearm” in a wound on Brown’s thumb. Melinek said this “supports the fact that this guy is reaching for the gun, if he has gunpowder particulate material in the wound.”
Regarding point 4, the shoplifting was NOT a day earlier, it was immediately before the shooting:
From the second article:
Ferguson, Mo., Police Chief Thomas Jackson said the robbery took place just before noon on Saturday at a convenience store roughly 10 minutes before a police officer identified as Darren Wilson fired the bullet that killed Michael Brown. Police say that the shot was fired after a struggle touched off by Wilson's confronting Brown. Jackson said Wilson is a six-year veteran with no disciplinary action on his record.
Now whatever motive the police chief might have to protect his officers, telling an outright lie is going to get him a heap load of trouble in lawsuits. So he's not going to do it when he's already sitting on a powder keg.
As to your last absolutely ridiculous question, the answer is Yes. Because the thug in question had already assaulted, attempted to steal his gun, and seriously injured the officer. Furthermore he was not walking away from him or surrendering. He was instead charging him with obvious intent to inflict further bodily injury.