i knew there was only two exits on ridgeland avenue.eir trucks to these roads, i radioed to my backup to close those two exits so they would be trapped in the subdivision here. >> he follows the suspects into a cul-de-sac where he knows there's no way out. he has them cornered, but he also has created a dangerous situation. >> if i'm at 6:00, they were at 12:00, and their car was right in between those two trees, so i could see them and they could see me. they had stopped at this point. i was by myself, but i knew that the time had come that they were going to have to make a decision what they were going to do. they began pulling around towards me. i thought they would try to go past me, so i kind of pulled like this to block their way out, and then that's when they pulled in the driveway here to your right. when they pulled into this driveway, they just pulled up like they were going to pull into that center garage door, and then i pulled my vehicle like this and angled it so i had a little bit of shielding in case they came out shooti

few people know it, but the tcf bank located at the busy intersection of 127th street and ridgeland avenueen for business. just before the bank closes at 2:00 p.m., a silver four-door chevrolet quickly pulls up in front. two figures dressed in black make their way in the front door. it's obvious these two are not here for banking business. they are here to rob the place. their faces are covered in masks, the kind seen in a hollywood movie about bank robbers. this tcf branch is unusual. a throwback to small town banking. there is no bulletproof glass between the tellers and patrons. there are no guard stations or even security guards. it's located in an upper middle-class neighborhood. because it's a holiday weekend, the bank is flush with cash for those customers needing extra money for memorial day celebrations. it's a perfect target for two brazen robbers hellbent on stealing a fortune. detective jerry watka of the palos heights police department has seen this bank hit multiple times during his 20 years living and working in town. he knows it's an easy target. >> as you can see, there's