kakashi killed himself. when choji was running kakashi used his mangekyo sharingang to get rid of the missle that was following choji and right after that pein threw the nail at him but before it hit him he used mangekyo sharingan on it to send it away but he wasnt surpose to use it that much so he acted like it hit him so thats what pein thought and left him. sekunde after he died because of his over use of the mangekyo sharingan then Naruto conviced nagato (the person behind the pein's) to bring kakashi and the others back. the episode is al ready out so if u dont beleive me watch Naruto shippuden ep. 159
Pein killed him but Naruto convince him to bring him back ;) I panic when I heard what happen but then I found out he comes back, then I was really happy
well kakashi didn't exactly get killed but watch this video and you'll find out how he 'died'. (This is only the part when he dies so if wewe wanna watch the whole battle go to link after watching that i got another vid which will onyesha that kakashi doesn't die which i think is very good, visit link)
