Gwen is waiting in the lobby of the Kashtta for Sam and Owen to get back. There might also be a Tosh hovering somewhere in the vicinity, sitting by the receptionist's desk with her laptop... just in case she's needed for anything.
They don't have to wait for long. One of the SUVs pulls up in front of the building. Sam and Owen get out - notably, without any sort of corpse or restrained Time Agent - and stalk up to the Tower. Gwen's already moving to meet them at the door.
Sam explains, as calmly as he can,
what happened. Gwen whirls away, cursing loudly and deeply considering breaking something. Tosh slumps a little in the chair behind the reception desk, bites her lip hard and stares at her laptop screen as if there's actually anything there to keep her attention. Sam quietly stalks off, up the stairs, to be somewhere quiet and tamp down the urge to shout and hit things.
Someone might want to intercept some of them. Maybe.