A former World Trade Center worker who “narrowly escaped” the Sept. 11, 2001 terror attacks has been beaten to death by three teens — one of whom was just 12 at the time of the attack, according to officials. Long Island native Roger Borkum, 64, was found “severely beaten” just before midnight on Oct. 19 in Downtown Jacksonville, FL., after three teens were seen “kicking and stomping” him, according to an arrest report from the Jacksonville Sheriff’s Office. He was found with blood “pooled” around his head — and a “blood trail extending down the sidewalk,” the arrest report said....