Had he simply killed himself, as so many postings after the incident said he should have, Katou would not have been grieved or even missed. Only by killing someone else, as Akagi pointed out, could his life register in the national imaginary at all. To call attention to the ungrievability of his own life then, Akagi killed others who would be much more grieved than himself.
Unsourced – yeah sometimes I lose track of the author and title. It’s from some book on Japan (duh)