[ applause ] good evening. i'm anderson cooper. it was a hot summer afternoon in erie, pennsylvania. into a small branch bank teps man wearing a white t-shirt with what he said was a bomb strapped undernooept. he was a local pizza delivery man and the bomb turned out to be real. so real for the first time in the history of the fbi, a bank robbery was elevated to major status. that was only the beginning. the beginning of one of the most serious crimes that would unravel into a murder with life and death at stake and a murderer still walking free today. drew griffin has the story. >> the most bizarre bank robbery in the history of the fbi.