But there are clearly many classes of "non violent" crimes which seem violent enough, and/or result in death. And as a lay person it's a bit opaque.
Given prosecutorial discretion in charging, there are things that could be murder or manslaughter, and therefore the same crime can be "violent" or "nonviolent" depending on some 50/50 charging choices by the DA... sometimes those choices being driven by what they think they can get a conviction on with a jury, not what they think the crime actually merits.
Did they intend to kill? No.
But what did they think was going to happen when they drove drunk 90mph / acquired an illegal firearm and used it recklessly?
Some people do bad things. Some people repeatedly do bad things. Living consequence free leads to more bad things.
I mean what do you do with a DUI driver, already on a suspended license who causes a fatality? Take away their license?