>> the security video is silent but the cameras record whoever is this the store from two angles? >> the two customers were two investors and a lady who was selling some jewelry. we were just having a great conversation of the finances. >> zeiter, behind the counter is out of camera view. he is watching two men outside the glass door. >> it felt wrong, their presence. you saw them already before they entered the store. and i have a switch on my right side where i just lock the store. i was reaching for the switch that's like a panic button and closes the door but i was too late. >> because it's bright outside the camera doesn't show the men until they open the door. when the two masked men barge in one of them tries to lock the door behind him but can't. >> when they walk in, they are like this is a robbery give me everything you have. and i was like no way. >> at first the customers are too stunned to react. >> they didn't know what to do because they weren't sure what i was going to do, how i was going to react. because if i'm not going to do anything, why should they risk their lives?