Complex sentence: Instead, Yutaka and Iijima are killed when Kiriyama attacks, to which Shinji sets off the bomb and is killed in the resulting explosion, which blinds Kiriyama, who is dispatched shortly after by Shogo Kawada.
Split into simpler sentences: Instead, Yutaka and Iijima are killed when Kiriyama attacks, to which Shinji sets off the bomb. The resulting explosion blinds Kiriyama, who is dispatched shortly after by Shogo Kawada.