families believe they were at this event or friend believe they were at this event and they have not been accounted for? >> from the very beginning they started building a list. that was one of the first things done when this fire broke out. the list at the beginning of 25. there was 25 unaccounted for. they didn't know whether those people were missing, if they had self-checked themselves into the hospital or they were in the warehouse. since they've been talking to families, doing the hard work of finding who is missing, who is unaccounted for and they've continued to build that list. so you're right. based on what they have, they know there are more people likely in that building. now the work stoppage, they have to fact that they need the workers safe. >> they even canvassed areas and found cars that hadn't been moved and ran the license plates to see if those people might