sunday roundup week bring multiple challenge outrage action t USA ay dash cam video violent arrest sandra bland release authority later say autopsy result suggest commit suicide jail q USA ion remain include year estimate people kill police african american unarmed q USA ionable justice system break way inescapably involve race th USA ay mass shooting time lafayette lo USA ana gunman despite have long criminal record legally obtain weapon hour shooting president obama say great frustration presidency able pass common sense gun safety law election season time critical issue burner change demand