Jon had never considered the mechanics of possession overly much, being neither religious nor a horror film aficionado. Murmur’s explanation of it certainly gives Jon a good chunk of new information to mentally gnaw on - he exhales a quiet huh and goes silent for a long moment, falling deep into his thoughts. He re-emerges with another question, of course. Softly, he inquires of the angel:

“Did you know the, erm - the vessel’s previous occupant? Before you acquired it, I mean.”