He's pushing his way warily out of... a broom closet? He's got his rifle in hand again, and he looks ashen. And maybe a little hollower in the cheeks.

He stops short and steps hastily back a good couple feet (back into one of the mop handles, in fact) when she bumps into him, expression for a fleeting moment actually afraid. He's not wearing his mask, it's dangling from his belt, so Kate might actually catch it before he forcibly smooths it back down to nothing. "Kate."