Homicide in England and Wales reaches its lowest level for 30 years:

http://www.bbc.co.uk/news/uk-18900384

"Offences such as pickpocketing, shoplifting and bicycle theft rose 2%, the only crime category to show a rise."

even in the US you can't shoot a fleeing intruder in the back.

Oh yes you can, as in this case from Texas in 1994:

http://www.highbeam.com/doc/1G1-110798618.html

...except the guy wasn't even an intruder, he was trying to get help after being abducted.