I'm not sure if he would have a chance, look at Mathew La Porte- he tried to charge at Cho Seung Hui but was killed. I'm sorry but I doubt a teen would be able to jump them when they are armed like that.
If they were reloading- yes, probably, but when the table Corey as at got shot, I'm sorry but he wouldn't stand a chance.
“You have vandalized my heart, raped my soul and torched my conscience. You thought it was one pathetic, bored life you were extinguishing."
- Seung Hui Cho
“There isn’t an open sky or endless field to be found where I reside, not is there light or salvation to be discovered. Right about now I feel as low as I ever have. So fucking naive man, so fucking naive. Always expecting change when I know nothing ever changes… I sacrifice no more for others, part of me has fucking died and I hate this shit. I’m living every mans nightmare and that single fact alone is kicking my ass.”