While he was there , he treated Mura like a son and taught him boxing as a way to straighten him out .
Mizoguchi is a former teacher at the high school which Shibata was investigating .
While Shibata was there , Shibata treated Mura like a son and taught Mizoguchi boxing as a way to straighten Shibata out .
Mizoguchi is a former teacher at the high school which Shibata was investigating .