Slap him

Marisa gets up and slaps him full across the face.

He looks clearly ashamed, apologizing profusely as he hit some keys on his laptop then turned it around to face her. "Here it is," he wheezed.

Marisa sped through the videos, stopping when she saw someone familiar dancing through one room, smashing vases.

The Joker! She thought he was dead, but obviously he wasn't. She found another video of him popping out of a whale statue. Another showed him setting a bomb before jumping out a window.

She thanked George - which was more than he deserved - and left the building.