Classicly

He knew that Lugert's personal suite was on the eighth floor of the building, that he was guarded by one man outside the door, one at the elevator entrance, and several in the lobby. He didn't have to worry about the ones in the lobby. He didn't really have to worry about any of them on the way in: they wouldn't be expecting anyone dangerous. The only dangerous people in this world were Lugert and his henchmen and they'd probably be off-guard when he came by.