[rottndog]

What you are describing here isn't justice,...

Is probation justice for killing 10 people and severely injuring dozens of others?

Again, if he wasn't too old to drive, he isn't too old to accept the consequences of his actions.

[CGTRWK]

Punishment by outcome is what Soviet courts did. Justice is considering the motivations.

It might be justice to send this guy to prison but you get there by talking about his intentions, capabilities and choices. Not the body count.