I don’t think that solved his problem.

If his problem was feeling hopeless in a world outside of his control: well he may have solved that, regardless of whatever else happens.

Well, it fixed a perceived wrong. Oftentimes injustice is what actually hurts.

I do believe, though, that there is a vast spectrum of behaviours in between non violent inaction and an isolated random killing, that make a lot more sense in every way and that is called politics.