Danzo's thing was set to go of when he died, it wasn't a suicide tech.Now that you point that out, I'm trying to think of people Sasuke killed (since Naruto and him are both parallel). Danzo blew up his own self, Orochimaru had sorta a weird demise, the only thing he sorta slaughtered were Zetsus, Karin survived, he aimed at an missed Sakura. Did he kill anyone?
technically he killed 2 of kakazu's hearts, so yes in a way naruto did kill him, twice.he didn't even kill kakuzu kakashi finished him off
you're kidding right? wow.........go on youtube and look up the fights or something. especially naruto versus pain.kakuzo and nagoto ??? who are those ???