Has it been established that he was shot 30 feet away?
The only real "witness" was his accomplice
Pics from the scene do not show Brown's body near the squad car. Initial reports were multiple shots were fired at Brown as he was running away.
Releasing the cop's dash cam footage and audio from both inside the dash cam and on the officer's mic would go a long way to establishing facts as to whether the cop was justified in killing the perp.