hope they don't burn the place down. >> reporter: he couldn't see, couldn't hear and he had no idea what was happening upstairs. all he knew was that his museum was unguarded and about to be robbed. it all happened so fast, he never had a chance to hit the one panic button by the guard desk. he knew no one was coming to help. did thieves know that as well? it appears they did, since they were in no rush to get out. >> it is interesting. they took the guards after they handcuff and tape them and brought them to the basement. about 24 minutes elapsed before we see them again. >> reporter: motion detectors place pd throughout the building picked up their trail for nearly an hour and a half. but that didn't matter. those motion detectors weren't connected to police outside. they only alert the guard sitting at the computer by the