Later that night, Lupo is out in the park in his bathrobe, while his dog stares up at him, decidedly not doing what he's out there to do. But it's convenient timing since Lupo's phone rings. He shows up at a murder scene to find blond-haired, cauliflower-eared bookie dead with a gun in his hand, having fired one shot. Unfortunately for all of us, when he's directed to the shooter he looks up to see none other than Green sitting on some steps being questioned.
Anita is out of the office for the first time this season and Green tells her (looking not so hot with a puffy nose, almost like he'd been crying) that he was defending himself. He's so wooden, however, that it's about as convincing as his excuse to leave earlier. She sends Lupo to comb the scene, and they turn around and are greeted by Sergeant Cole and Detective Bernard of internal affairs. Get to know and love Bernard, folks, because in this age of the internet we already all know he'll be around for a while. Anita calls them off until Green can speak to his attorney and file his report. Green looks like he might barf.
All of that must have happened since now he's in questioning, and they note the incredible coincidence that Green knew about the gambling club and went there just to see if anyone there might know Cauliflower Ear -- Buddy. Cole explains (for the sake of the viewing audience, really) that the club was in a "corruption zone" where cops weren't supposed to go. When he suggests Green had been there before, his lawyer steps in to say he's only answering questions about this case. Cole says they get to decide what's pertinent and then Bernard asks again if Green knew Buddy (Bunny?) was a regular there. When the lawyer interrupts he puts up his finger and closes his eyes with a "Shhhhhh" that I haven't yet decided was amusing or annoying. He tells Green that if he's got a history with the club and the guy he shot, he should tell them now rather than waiting for them to dig it up in an investigation, and he does it all in that annoying tone you take when you're trying to convince someone you're only there to help them when you're really there to nail their balls to the wall. He asks again how he knew Bunny (finally, someone enunciates!) would be there, and Green grudgingly admits he'd been there before.