Board Thread:Theories and Speculation/@comment-3001903-20151205022433/@comment-25093611-20151210153327

QuakingStar wrote: Possibly.. Kakashi was pretty hurt mentally when Sasuke left Konoha and I hypothesize that is what helped him re-awaken his Mangekyo. Seeing Rin die awakened it the first time. but you only need the feeling of "loss", not do the act yourself, that means it is also possible for obito to awaken the MS and kakashi got the effect too since the eyes are connected ^_^