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

>> tcf bank on 127th and ridgeland just got robbed. >> okay.u have a description of the offender? >> the most important information to get an offender, there was a weapon used, what they were wearing, what they looked like, if they left in a car, get the make, model of the vehicle, a license plate, if you can, which direction they left, so that the officers responding can either start heading that way to cut them off, if they are no longer there, that it's safer for the officers when they get on scene. >> one is a female and the other is a male. >> a male and a female? do you know if they're white, black, hispanic? >> black. >> were both wearing masks? >> yes, both had a mask on, like the "scream" mask on. >> she said that they were wearing "scream"-type masks. i had never taken any calls when anyone has used those type of masks. i've taken them when they used ski-type masks, so i wanted to make sure i heard what she was saying so i had to ask to verify. like scream-type masks? >> you know the "scream" costume? >> "scream" costume? i thought it