Training Exercise Where News Today

Hasan had the hand gun in his pocket and 16 magazines. he stuffed paper towels in his pockets so other soldiers couldnt hear the magazines clank together. hasan walked into a room filled with soldiers getting final medical approvals. according to court testimony, hasan sat down in a chair, placed both hands on his knees and stared at the ground for a moment and then stood up and started firing. >> i thought it was a training exercise where, you know, gun shots going off and it would be over in a...

Moment and then stood up and started firing. >> i thought it was a training exercise where, you know, smoke is in the air and gunshots going off and it would be over in a minute. and then when i saw the blood and the people running around i realized that it was not. >> reporter: the smell of gun powder, smoke and blood filled the room. hasan reloaded magazines quickly firing nearly 150 shots. hasan targeted unarmed uniform soldiers and tried to avoid civilians. red and green colored laser lights...

Didnt happen. later that morning hasan returned home to this apartment complex and started shredding personal documents. hasan dressed himself in u.s. army fatigues, packed up weapons and made the short drive to fort hood. it was just after 1:00 when nidal hasan walked into the soldier readiness processing center. hasan had the hand gun in his pocket and 16 magazines. he stuffed paper towels in his pockets so other soldiers couldnt hear the magazines clank together. hasan walked into a room fill...