Local Vet Recognizes Behavior of D.C. Shooting Suspect

Experts and his own father at one point said Aaron Alexis’ symptoms are classic post traumatic stress disorder triggered by the attacks on 9/11. We learn more from a San Diego army veteran whose theraputic use of mixed martial arts helps those on active duty deal with the affects of PTSD. NBC7’s Dave Summers has startling information about the shooter’s emotional disorders known to law enforcement.