cop comment lock-step leftist narrative okay use violence punish innocent cop long bring attention bad cop would even news story man target violent black live matter movement unable speak people seek brothers/sisters harm detroit police say launch investigation officer viral facebook rant black live matter movement reaction dallas police shooting.the post officer nathan weekley view 40,000 time react tragic dallas shoot leave five police officer kill several others injured.the post read first time nearly 17 years law enforcement officer contemplate call work response outrageous act perpetrate brothers seem like response demonstrate importance society whole racists piece expletive black live matter terrorists supporters post already lead ugly viral backlash weekley far decline speak action news due internal investigation president detroit police officer association talk us.via wxyz detroit cop fire facebook post racists piece expletive black live matter terrorists supporters video