The dog walker, Ryan Fischer, was shot while walking the singer's three dogs.
A 34-year-old man and 24-year-old woman were charged on Thursday.
He was found responsible for the mother-of-two's death in 2011 at the Yellowhead Inn.
He also assaulted the girls' mother.
The Trudeau government says mandatory minimums unfairly affect Indigenous and Black offenders.
He was sentenced to 10 years behind bars in 2016.
Corey Hurren pled guilty to eight charges.
Justice Shawn Greenberg has concerns about his history of not showing up to court.
Mayor Jeff Lehman said there will be full accountability of the incident.