Are students so violent now?

They directly hit the back of the head with a bench.
Probably incapacitated.
And used the chair's corner to strike the head.

"Actually didn't hit"
The person from the school who said this is really heartless... Not afraid of retribution.

Probably has violent tendencies in their genes.
Was a troublemaker as a child.
Grows up to be even more lawless.
Not ruling out the possibility of becoming a murderer.
Grows up to be a threat to society.
Suggest executing them immediately or sentencing them to life imprisonment.