He killed Rin because she loved Kakashi more than him.
meh probally tobi is obito.actually i have a theory on why i think so but it would be pointless maybe because he is most likely going to revealed next week anyways...If i where to do so i would l put in the &$$##^%#$ sticky like a intelligent member would(this was not directed @ u dante JUSt stupid noobs asking stupid questions)
and the theory i would make would have to with kishis style of writing
when i say that i mean
Hiruzen VS student (orochimaru) Vs rival (DAnzo
Jirayay vs Student ( nagato) Vs rival Orochimaru
Minato vs student (tobi) ???(maybe) vs Rival( 4th raikage( need more back story on minato)
Kakashi Vs Student ( saskue) Vs rival tobi ( friendly rival is Gai)
I would then make a bunch of speculations
as well as make opposites to
You must be registered for see images
...