Board Thread:Theories and Speculation/@comment-1783334-20150507053750/@comment-1783334-20150507071119

You are not getting it so I'll try to break it down. Shisui used Kotoamatsukami on Itachi (Which explains why his Mangekyo needed a decade to recharge because he never used it on Fugaku or anyone else) to make Itachi believed he killed himself to the trauma would awaken Itachi's Mangekyo, then he ripped it out, gave it to Itachi and disappered.