few moments from now. it was here almost exactly 24 hours ago now that a gunman opened fire from the roof of a building about two blocks behind me, killing six people, you can hear the sounds of it right there, wounding 25. it caused hundreds of people to flee the scene. a real moment of sheer terror. you can see actually behind us now some of the chairs that they left behind still littering the scene here. police did find a gun on the roof of that building. ultimately about eight hours later they were able to apprehend someone there y re calling a person of interest, they used the phrase suspect, that person has been in custody overnight and several hours and investigators are going through his past trying to learn more about what might have led him to open fire on this celebration of the nation s independence. let s get the very latest on where the investigation stands this morning, i m joined by josh campbell who has been on the scene now for 20 hours at this point chasing
took the main brunt of the attack with many tanks and vehicles disabled. when his tank commander was hit, and gravely wounded, specialist birdwell got him to a place of safety and then took command. he knew his vehicle was on the first line of defense. so birdwell stood and his commander, half exposed, at times standing out of the tank, fully exposed, laying down suppressive fire on the enemy. he used the tank s cannon, used the tank s machine gun, he used his personal rifle, he sustained fire, drove back the attackers and created a place of relative safety for the injured men behind the tank to take cover. he provided battlefield updates to his commanders until the enemy shot the communications system right off his helmet. when he ran out of ammunition, he ran to retrieve an m 60 machine gun and ammo off the