"If convicted, Mijailovic faces a life sentence, which in Sweden usually corresponds to about 15 years."So, at age 40 he'll be released, and will be free to stab a third person - or a fourth, a fifth, a sixth,...
He may very well be a schizophrenic. If he serves time in prison and he is that mentally ill.... when he gets out and goes on his way... he probably will kill again.
This is an illness which requires treatment and close supervision.... in a socialist system or in any political system.