I'm surprised that he's not saying that Gazza should have been allowed to join the negotiating team :)
This guy shot dead one person and wounded two others - but his brother insists he wasn't a deranged killer (oh - what would you call him then?)...but insists he was just an ordinary guy suffering from a nervous breakdown. Lots of people have nervous breakdowns...usually they just take prozac and sleep, have counselling and hopefully get better (not tying to trivialise mental illness here - but surely you get my point?)...the thing is - they don't go on the rampage with a fully loaded weapon and terrorise everybody within 100 miles. There's a clue in the finale - nobody who is safe and normal (!) blows their own face off.
Sorry he's dead and all - but maybe that's the correct outcome?