The article text provided is just Daily Mail's site navigation and a list of unrelated headline links — it doesn't actually contain the body of the story about the Mount Sheridan shooting. I can't accurately summarise events, numbers, or context that aren't in the text without guessing, which risks fabricating details from a title alone.

Could you paste the actual article body (the paragraphs describing what happened during the stand-off), or confirm you'd like me to try fetching the URL directly?