Owen Silverthorne pleaded guilty to manslaughter for the unlawful killing of Shane Grenier.
The incident involved a drug transaction, an altercation in a vehicle, and the discharge of a handgun, followed by steps taken by Silverthorne to conceal his involvement.
The Crown accepted the manslaughter plea due to arguable self-defence and provocation issues.
The court considered aggravating factors, including the use of a prohibited firearm in drug trafficking, the devastating impact on the victim's family, the offender's criminal record, and the threat to public safety posed by firearms.
Mitigating factors included the guilty plea, which spared judicial resources and provided certainty, the triable issues of self-defence and provocation, the offender's youth, family support, and prospects for rehabilitation.
The court accepted the joint sentencing submission of 5.5 years jail, with credit for pre-sentence custody.
Ancillary orders included a DNA order, a lifetime weapons prohibition, and a no-contact order.