Bah.No one is violent because of music or because of games.

But is much better for society to blame music and games instead of admiting that they are the guilty ones actually.

In Germany we had assissinations too. The guys used to play "Counter Strike". All they wanted was revenge. They hated thei classmates, their teachers and all the others around them. And of course, nobody liked them.

The German politicians had not much experience about that. We have heard of Columbine and other things that had happened before. The parents were scared and the politicians had fear to lose their "good" image... (btw: Politicians in Germany never have a good image!). But all they were suggesting was to prohibit games like this.
Nobody of these "experts" did test it. They never played it, so they don't know what they are talking about!

Why are most of the killers males?

My own guess would be that they have more testosterone?

Women have more emotional strength to deal with a situation rather than kill somebody?

Who knows, but most drug dealers, dictators, rapists and murderers are men. In general crimes are more often than not, commited by men.

Why do males generally act like males?

Cuz we don't have nails to brake.