the bloke clearly has mental health issues - obviously he's committed crimes but nothing worthy of being shot and, given he's on a rooftop, killed or severly injured

if you want to change police guidelines to shoot people who behave eratically and are in a situation that they only present a danger to themselves then you're a fool

would you want someone on a roof next to your house to be shot dead?

if you think that there's elite police snipers able to 'take the perp down' then you're an idiot who knows nothing about firearms other than what you've seen in movies

it's ignorant arseclowns like yourself firing up and being generally ignorant that are bringing this country down, not policing methods