kakashi did kill rin, theres one huge factors most of you are missing, obito's and kakashi's sharingan are linked together and obito was able to see rin through kakashi's eyes and that proves that it was the real kakashi and not a zetzu clone
yep i agree. ton ton is the killer. JK, LolNah, it was Tsunade's pig that killed Rin.
Jks It was the real Kakashi, nearly everyone knows.