Ah, the police officers have body cams so just in case we have a serious situation the video evidence is there to prove or disprove what the defendant claims. It’s an outgrowth of the Ferguson, MO situation, because there was no clear video evidence of the shooting of Michael Brown.
You mean the “unarmed” Michael Brown, whose DNA was found inside the police vehicle and on the officer’s gun. Kind of hard to explain that all away, since it confirms Darren Wilson’s account of events leading up to the fatal encounter.