All 'attackers' are young male, is this relevant?

[camaleon]

Not sure whether there is a point to make about this. I have been reading all kind of articles and listening to analysis trying to work out the 'reasons' behind the many mass killings that have happened recently (for instance, here. However, nobody highlights the most obvious feature all these attackers share: they are male and they are young.

Perhaps there is nothing to highlight. It is taken for granted they will be male and it would only be news worthy if they were all female/all over 60/all with green eyes, etc. Still, it seems to me that something must be totally wrong in the way we bring up boys to make them the vast majority of our prisons' population and authors of most crimes one can imagine, particularly violent crimes. I am sure there are tons of books/articles written about it. Would any of you be able to direct me to some good resources on this (rather than me googling at random)?

Returning to the point in the OP, it has been acknowledged (although not explained) throughout history that young men are the most likely to become a threat to society if they have no ties to its future. It's like the social contract theory on speed - men with no investment in society succeeding will supposedly lead to its downfall.

Plenty of societies throughout history have tried to take that information and make it work to their advantage, for example signing young men up for wars / crusades. In peace time there have been efforts to alleviate this effect by giving men a reason to feel invested in society - look at the creation of jobs in Communist societies, the provision of good quality, cheap housing in the UK in the 1950s or the full blown consumerist dream in the USA at the same time.

The fact this trend occurs over cultures, geography and millennia makes me think that this isn't a socialisation issue - although obviously the outlet of it is. I dislike evolutionary psychology as a whole but it to me it appears that there could be strong links to the need for tribalism at a certain stage.