I think it greatly depends on what he has and how it really affects him. When I think of diminished responsibility, I can't help but think of a woman who has been abused by her husband for years and kills him. And, just to be totally fair, I honestly believe diminished responsibility is so overused, its just ridiculous. We've heard every sob story imaginable - sometimes they are appropriate and applicable to determination but often they're not. Where do you draw the line? A hypothetical person commits murder and states he never would have done so were it not for the abuse he experienced as a child, his alcoholic parent, being a loner in school, being the middle child, not getting an allowance, etc?
As such, diminished responsibility has to be case by case. So what in this case rises to the level of diminished responsibility? He is a double amputee? Oscar has always fought to be treated no differently, until now. Quite obviously too, not every other double amputee commits murder. He's been diagnosed with GAD but he's neither paranoid or delusional so again, nothing that millions who never hurt anyone deal with. He lives in SA? He was afforded every opportunity for the best security imaginable and still was lax. He lost his mother young? Its horrible but we're not judging the actions of someone 15 years old.
So when does someone become responsible for their actions? He chose to own a firearm and sought to own many more. He was trained for said firearm. He damn well knew he was impulsive, had a temper, and provoked fear in others and he did absolutely nothing to seek any help and still refrains from accepting any culpability for doing so. Instead he's defiant, arrogant, insincere - lacks remorse, acts superior, is egocentric and displays a sense of entitlement.
So I just can't see diminished responsibility. He had so many opportunities afforded him over the course of his life others can only dream of. So much possibility to succeed - but like many who commit murder - was truly his own worst enemy.
All JMO
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