"We live in a country where:"
No we don't.
Some of us live in a country where if someone is shot dead by police, it is all over the front page of every newspaper and is the lead story on TV News channels for two or three days.
A full independent enquiry is then carried out, and action taken as necessary.
I haven't consulted the great google oracle, but from memory I cannot actually remember a single person being shot dead here (UK) by police in the past twelve months.
I may be wrong, but even if so I'll bet the number is no more than one or two.