Denver 's district attorney says 3 will face felony charges related to 2 incidents . The first was a June 2012 incident in which an officer shot and killed a man who had been threatening him with a knife. One had accused police of `` attacking us '' during demonstrations .
Denver 's district attorney says 3 will face felony charges related to 2 incidents . The charges including inciting a riot and assaulting a police officer . One had accused police of `` attacking us '' during demonstrations .