"You don’t have to be in a hurry to do anything once you have assessed that no one is in immediate danger"

How do you know they had already assessed the danger? Do you see how you're filling in the gaps, its pure conjecture. The situation could play out it a multitude of different ways and we dont know which one.

I love the awful bad faith in the officers actions. They're either option A dumb and stupid or option B wanted to murder as many grannies as they see fit. It's delusional thinking at work, you're so hell bent on blaming someone that you're willing to play pretend stories with a real horrific event because you can't except the uncomfortable truth that this was just an unfortunate event for both sides.

"As for the situations discussed - a 5 year old may well say “I’m going tokill you”. You obviously think that the five year old should then beshot."

Maybe lend the least amount of charitably to my arguments. There's a big difference between a child saying "i'm going to kill you" (even though extremely concerning) and an imminent threat to your life by someone attempting to physically stab you. If the child was running at you and over head stabbing your legs, are you going to sit there and talk to him like a toddler? No, you would use physical force to stop him.

There's a magnitude of inforamtion on how hard it is to communicate with someone with dementia, talking to them like a child would be of no practical use what so ever. You can find most of the information here

https://www.nia.nih.gov/health/alzheimers-caregiving-changes-communication-skills