Dixon's search of the car turns up a copy of the rental agreement for this "Lyle Plimpton" guy, and Jack and Ralph track to his apartment, where he turns out not to be a thin, pale guy as a witness suggested but a large black man. The Lambs marvel at the killer distracting them on a fool's errand like this, and they figure he's some smart son of a bitch. I'd argue that a smarter assassin wouldn't use such a rare weapon, but then again, I'm not a hitman.
As it turns out, the smart son of a bitch is over at the Savoy, talking his way past a deputy by claiming to be a carpet salesman with an appointment. The deputy wants him to open the case. Jones pretends to be concerned about having to do so -- classic television fakeout, because of course he's got a briefcase full of carpet samples (which go with the business card of "Alvin Lewicki). The deputy lets him past, but Jones has drawn the interest of another, less stupid deputy.
In Savino's office, he and Red are discussing Angelo giving up the Tumbleweed, which neither of them thinks makes much sense. "In the old days, Chicago would retaliate, not negotiate," says Red. That's too far the other way, snaps Savino, who wants to go down the middle.
The suspicious deputy has followed Jones, who's heading up the stairs to Savino's office and pulling a gun from the back of his pants. The deputy yells for him to drop it. Jones turns and fires instead, clipping the deputy. Red and Savino charge out of the office, Savino shooting at a fleeing Jones.
Deputy follows Jones, sees him pull a gun. Tells him to drop it. Jones shoots. Red and Savino charge out, Savino fires, chases Jones off.
After, as the deputy is being rolled away on a stretcher, Savino offers his sympathies. He sounds sincere, but Dixon is having it. "Shut the hell up. You're the one who started all this!" he yells, and has to be physically restrained from taking Savino outside and teaching him a lesson on Freemont Street.