MSNBC Live with Thomas Roberts 09/18/13

Were red flags missed leading up to Navy Yard shooting?

Much of the investigation into the Navy Yard shooting today will focus on the warning from Rhode Island police about hallucinations suspected gunman Aaron Alexis was experiencing last month. Jeff Gardere, a practicing psychologist and TV personality, joins MSNBC to discuss the mental health component of this tragedy. ... more Duration: {{video.duration.momentjs}}