America's 'next Trayvon Martin' died in back of a police car
                                
                                
                                    (Newser) -
                                    The man who could be  America's next Trayvon Martin  died of a self-inflicted gunshot wound in the back of a police car, according to an autopsy report. The Arkansas crime lab report says Chavis Carter, 21, died from a gun muzzle pressed to his temple. Autopsy results, along with...