It sounded like:
"Sir Lancelot rides the the rescue! C'EST LOUIS! C'EST LOUIS!"
UPDATE 2: Solved (I think):
Thanks, J Lam. But, still... what??
UPDATE 3: Oh, Christ. It's another Broadway reference. In Camelot, Sir Lancelot sings a song called "C'est Moi," meaning, of course, "It's me!" So, not being Berkman, John must say--no, cry--"It's him!"
Gaah, I have spent so much time on this. Thanks, John!