september 2013 in charlotte, north carolina. 24-year-old jonathan farrell is shot and killed by police knocks on the door of a nearby home for help but the woman panics and calls 911. >> you say he's a black male? >> reporter: farrell, a star football player from texas a & m is unarmed but when police arrived, the officer fires 12 times striking jonathan farrell ten times. he dies at the scene. the officer is put on trial for voluntary manslaughter but the jury couldn't agree so the judge declared a mistrial. in florida, may, 2013, a police car is chasing marlon brown, who is now on foot. he had been stopped earlier for not wearing his seat belt. one final glance toward the oncoming police car and brown disappears beneath it. >> i think he's underneath the [ bleep ] car. >> reporter: but the 38-year-old father of two is already dead. the officer driving was fired but a grand jury did not indict him. randi kaye, cnn, new york. >> back with us now this hour, "new york times" columnist charles blow. joining us is jeff ladough, former philadelphia mayor michael nutter. charles, it's a powe