WASHINGTON, D.C. — Pentagon security officer Marvin L. Carraway Jr. saw the man walking toward him. A split second later, he saw the man's gun.
"When I looked at the shooter, he looked at me and I recognized a certain look on his face," said Carraway. "Once I saw that, what went through my mind -- 'This is it, something's about to happen.'"
Pentagon officer knew 'something was about to happen'