Rowan's Impossible Case

The East Wing study door is open. Thomas Hale lies facedown on the floor, blood spreading beneath his head. A heavy desk looms nearby. The fire is lit. The window is open. No weapon in sight. Victor swears softly. Elena doesn’t move. Lydia steps back, already calculating.
Samuel Finch appears behind you.

“The phones are down,” he says. “The storm.”

Of course they are. This is now officially a crime scene.

What do you do?