"Whoever Did This" is a great episode, and it - like many of his scenes in general - belongs to Joe Pantoliano. He's dead for the episode's second half of course - though even posthumously the wig gag is a hoot - but before then we get to see the full range of his acting. Calling Paulie's mother, the desperation of his face as he runs to call 911 for Justin (that tracking shot is brilliant!), his reconciliation with Rosalie, and his final scene... He's one of my favourite characters in the show.

Narratively, it's a somewhat contrived set-up having Ralphie prank-call Nucci then have his son hospitalised then having Tony tell him of Valentina then having him accused of something (I'm convinced) he didn't even do and then of course, killed. It's contrived because it's obviously meant to create both a moral ambivalence in the viewer toward Ralphie, and also with the emphasis on Justin's accident nobody expects him to be murdered by Tony.

Saying that, it's strengths lie in the editing, directing and acting, as ever. Two seemingly insignificant shots forewarn us early on of two major scenes later in the same episode. The first of these sees Ralphie lying in the bath when the maid frantically tells him of Justin's accident - his impatience with her suggests he'd much rather bathe in peace than be disturbed by her, regardless of the immediacy in her voice; as it turns out, absurd irony sees Ralphie's corpse chopped up in that very bath. The second scene is when Tony physically restrains Ralph in the hospital after the latter tussles briefly with his Justin's mother and her husband; Tony is both the literal and physical voice of reason here - later, in Ralphie's kitchen, he's the absolute loose cannon that takes a life without much thought or regret.