Can't stay in the Stairwell.
Going back to the Stairwell.
Can you get me to that Stairwell?
Yeah, I think he took the Stairwell.
If we blow the Stairwell, she's dead.
Every night, he'd smoke in the Stairwell.
He's currently entering vertical Stairwell five.
He's been in the Stairwell for a while.
Yeah, I heard him run down the Stairwell.
Maybe the killer came in through the Stairwell, taking the body out the same way.