wtf man...what drives someone to attack a school with helpless children.
Once you become a parent, such sad news hits you a hundredfold...
Psychological.
It's not someone who has a weak mind.
But it's society that created the psychological problem.
If it's just one man, we can assume it's his own problem.
If it's happened over and over again, then we know it's society.
We are living in a competitive world in the name of material progress.
The competition will destroy our kindness, and a lack of kindness toward each other will push most people into great frustration and depression and lead to "revenge" on society by killing innocent people.
Most of us actually already have a psychological problem without we are realizing it, we are actually unhealthy and broken.
Stress, anxiety, etc are common problems.
Most of us are going to hell.
Modern society creates us.
Our soul is like water, able to react and adapt to any kind of condition and situation. Mass murder like that is just a product of reacting and adapting to the bad condition and situations. We call him unnormal, but the one that does not react and is unable to adapt is the one that is unnormal actually.
Some religions call the world today the world of Dajjal or the world of Anti-Christ.