Naruto 605
Naruto 605 " Hell " Summary : Obito sees Kakashi stab through Rin with the Chidori, and both Kakashi and Rin fall down. The surrounding Mist ninjas are surprised that Kakashi killed Rin and plans to recover Rin's body. After seeing what happened, Obito goes on a rampage and slaughters the Mist ninjas with his Mokuton and Kamui powers. After the rampage, Obito wonders where he is and figures that he is in hell.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ It sounds like Kakashi killed Rin to stop the Bloody Mist ninjas from getting something important, and this is one of the few similar scenario that would lead Kakashi to kill Rin. Also not too surprising is that Obito killed all of the Bloody Mist ninjas but Kakashi has already fainted and probably won't know what happened. We are waiting on what Obito will do now that Rin is dead, Kakashi is down and all the enemy ninjas have been slaughtered. Also, there is the details of exactly why Kakashi had to kill Rin. Probably one or two more chapters to go in this flashback.
