Jim Yanik wrote:

SNIP
Now,that UK man who shot the burglars in the back was justified,as the
police were of NO use,and he had suffered repeated burglaries.The police
failed in providing him security,so it fell upon himself to do so.
Criminals should have no right to safety while commiting their crimes.
SNIP

This is simply attempted murder. The target was no threat and was
departing, but the householder shot him anyway (that makes it vindictive).

If the householder had just shot the guy in the chest when he first
confronted him....

It seems to come down to a difference in attitudes.

Americans hold everybody else's life cheap (cheaper than the cheapest
bit of property).

Uk/NZ and others consider both lives of value, but allow reasonable
force in defence of self or others (defence of property is different).