Mr. Belin. What did you do?
Mr. Walker. Well, there was squads of police upstairs supposedly searching the building out, and someone said they have enough upstairs, so I didn't go upstairs.
Mr Belin. What did you do when you were downstairs?
Mr. Walker. We were checking persons as they came in the building.
Mr. Belin. Did you keep people from coming in or going out, or what?
Mr. Walker. We didn't let anyone in or out except policemen.
Mr. Belin. About how soon after you saw the telecast do you think you got down there?
Mr. Walker. Ten or fifteen minutes.
Mr. Belin. Was the building sealed off at that time?
Mr. Walker. Yes; it was.