it depends on the area living in largely ... i live in an area (total population near on 300,000 and in this 4-6 thousand are polish people and not a single shooting ....
what i am trying to say is that in poland we have certain laws that prevent this type of behaviour, also the culture is different...
Follow the link for 2001 statistics on murders in Europe in table 1.1 of the document below. No doubt the figures for subsequent years in the UK are worse but before you get too paranoid about our violent society look at the right hand column.
interesting,,, if you look at countries with some religion they tend to have better figures... surprisingly