User blog comment:B214/Volume 23 discussion blog/@comment-31137559-20170520043126/@comment-10330822-20170520192752

Well, to be fair, they can blame Diodora for his actions, even if he is dead. In fact, most people find it easy to blame someone who is already dead. However, they can't make Diodora "pay" for his actions. Astaroth may have had to make reparations in some regard, especially to Glasya-Labolas, since Diodora confessed to killing the heir.

I'm just curious if anyone can blame Issei for Diodora's downfall, even if Diodora did it to himself.