Yes, “they” do. So was it the family, or just Joe?
I believe I see your point. I see a distinction between patriarch's culpability and a family's' responsibility. God is the only judge of persons, families and nations. However, if my father directed that kind of ruthless mayhem against my little sister I would consider him a unconvicted criminal and our familial relationship/reputation would be just as permanently damaged as her brain.
RIP Eunice.