The murder stats are interesting, and seem to point towards males being more prone to violence. But who were the primary care givers for all these men when they were most impressionable? I think women hold at least some of the blame for the boys that they are responsible for.
Not to say fathers are not responsible too. I've been back in London just a few days and the British seem to be leading the way in Western Europe in terms of disregard for their children's wellbeing (threats of hitting and verbal abuse). I am not in the poorest areas of London either.