Almost, CAPO, almost!

Not counting the animals he's killed, Christopher Moltisanti has six kills to his credit.

Here are the victims:
Emile Kolar (the first-ever victim on the show, Chris does the honors, putting a draft in Emile's dome with four bullets)

Mikey Palmice (Chris shares credit for this kill with Paulie; Chris and Paulie thoroughly ventilated Mikey with about a dozen or so slugs)

Sean Gismonte (during Sean and Matthew Bevilaqua's unwise drive-by assassination attempt on him, Chris gets a couple shots off after getting wounded; one shot blows Sean's brains out)

Carlo Renzi (when Jackie Aprile Jr, Dino Zerilli, and Carlo Renzi hold up Eugene Pontecorvo's card game and it turns into a shooting gallery, Carlo dies when Chris puts a bullet between his eyes)

Dino Zerilli (after the card game hold-up goes awry, Jackie Jr car-jacks someone and leaves his friend Dino to his fate: getting executed by Chris and Albert Barese, several bullets at point-blank range in the face)

Lt. Barry Haydu (Tony gives orders to Chris to snuff out the newly retired cop who apparently killed Chris' dad, Dickie Moltisanti. Chris invades the cop's home, waits for him, then executes him with several shots to the head)

With these six kills, Christopher Moltisanti is officially the most murderous member of "The Sopranos"!