>> oh, son, i love you so much. oh, heavenly, just please be with him. >> the gunman, ian david long was a 28-year-old war veteran who entered the bar just before 11:30 p.m. carrying a .45 caliber glock and an extended magazine. >> i saw him point to the back of the cash register, and he just -- he just kept firing. >> he shot the front doorman, bouncer. just a young man, and he shot the cashier. >> first responders rushed to the scene as survivors scrambled to escape. >> so they, unfortunately, are young people, people at night clubs, have learned that this may happen, and they -- they think about that. >> reporter: and then he broke through bar windows while others ran to hide in bathrooms and attics. >> friends got the bar stools and they started slamming them against the windows so we could