The dummy wasn't smart enough to wait a day where he could credibly claim he'd heard the new stuff after deliberation.
He's no dummy. He's an author who has successfully pushed scandal-mongering in the past, including criticisms of Libby's WH office.
Jury duty was a winning powerball ticket for this guy. He will make a million dollars off this, which explains his breathless enthusiasm. "Where's Rove, where's Cheney......We were hoping for Bush," (stars in his eyes).