>> soon the shannons became six, with the birth of their two boys. and in 2000, david took the family south to fayetteville, when he was transferred to ft. bragg. >> david loved the military. he loved being the soldier. you talk about somebody having a first love or something they loved more than anything. he loved that uniform. >> and the military had been good to david. he was major shannon by now, well on his way to becoming a colonel. and that was the phone call the shannon family was really looking forward to from ft. bragg. not the one they got that devastating morning in july 2002. >> they said david's been shot. he's been murdered. it couldn't be, he was in special forces, he must have been into something odd, there must have been something with what he was doing at work that, you know, this must have been a hit.