and the way things were set up, people really had no route to escape. >> an eyewitness account of what happened, dr. rayle, also saying at that moment when he saw what was going on, he himself hid behind a column. then he dropped, and a couple other people grabbed the alleged shooter, joined in and held the shooter down before he started to help those who were severely injured. dr. steven rayle on the scene. there will be heroes in this, don. people who risked their own lives to deal with this shooter, who simply opened fire and started killing people. >> i thought it was amazing, i heard that interview that you did with that young man and he said the scene wasn't as chaotic as you would think it would be. people were fairly calm. and even a woman jumped in to help to pull the magazine out of