dr. stolback's program reaches 250 kids per year. >> when you are constantly exposed to violence or feelonstantly under threat, the parts of the brain that are involved in learning get shut off. and what happens is the surviving brain takes over. and so they're constantly in survival mode. there are functions, it's not like they're not functioning, it is they're functioning with very little sense of a future, very little hope. one of the manifestations of that is this almost chaotic violence that we're seeing. >> 17-year-old dialante lee has bee was shot five times. he has been extra vigilant sins then. >> since then. >> i stop let them walk ahead of me. >> he just finished playing basketball at the park he says when a man randomly approached him. >> couple of seconds later he was reaching for something, i don't know what it was, so just froze up. he just started shooting. once he started shooting i just ran. as i was running they was hitting me. i just kept going. i was asking myself like why is this happening to me? but the best thing for me to do i just didn't panic, i was just trying