@Azitem well, everyone claimed or was thought to be the strongest in that age only to die in battle a couple of years later, that's just how unforgiven and how harsh those times were. There's also the thingy where the next generation surpasses the previous, but whatever
I think at this point, he's nothing like his former self. There's no way your only reason for living being killed and being put in jail for 14 years doesn't affect you. As Ou Hon said, he wasn't defending himself properly as he doesn't care about living anymore.