The 19-year-old defendant pleaded guilty to three counts of impaired driving causing death and three counts of impaired driving causing bodily harm after driving at 168 km/h through a red light with a blood alcohol concentration more than twice the legal limit.
The collision killed three children and seriously injured three others.
The court weighed the catastrophic harm and the need for denunciation and deterrence against the defendant's youth, guilty plea, genuine remorse, intellectual disability, and harsh pre-sentence custody conditions.
The defendant was sentenced to 8 years in prison, less credit for pre-sentence custody, and a 20-year driving prohibition.