uniform. so she'll always know. >> reporter: the children of fallen officers leading the way to a path of healing. >> msnbc's chief legal correspondent ari melber reporting. the retrial for former south carolina police officer michael slager has been set for march 1st. slager charged with murder in the shooting death of walter scott. earlier this month a mistrial was declared after a deadlocked jury couldn't come to a unanimous decision. in a separate federal case, slager is charged with violating scott's civil rights. that trial is scheduled to begin in may. the man convicted of killing nine black worshippers in charleston, south carolina, last year has been ordered to undergo a new competency evaluation before jurors decide his fate. a judge ordered the exam for dylann roof yesterday after his standby lawyer questioned his ability to stand trial. the move came one day after roof said he would again represent