A person is 100 percent responsible for what they do when they get behind the wheel of a car. ALL DUIs should be prosecuted as attempted murder and none of them should EVER drive again, the same goes for *any* mind altering substance.
I’ve had family members and friends killed by speeding drugged/drunk drivers, they can take every last stinking one of ‘em and lock them up forever, no pity, no remorse, no redemption, thugs and murdering sickos no better than the most violent low-life gang banger if they get behind the wheel unable to drive.
Sorry for your loss - I understand your passion.