“Ryan’s been anticipating the sentencing for quite some time so there was somewhat a relief to not have to be back in court, to know what he’s up against for the next couple years and just to have the sentence complete at this point,” Armstrong says. “We finished our submissions in June of this year and we didn’t get the [sentencing] decision until September, so during that time Ryan was quite anxious to find out what the sentence would be.”
During the sentencing hearing in June, prosecutors said Grantham shot his mother in the back of her head at their home in March 2020, per reporter Karin Larsen of CBC News, who virtually attended the hearing. Grantham then filmed a video of himself where he confessed to the murder.
Per Larsen, prosecutors said Grantham got in his car the next day with a plot to kill Canada’s Prime Minister Justin Trudeau. However, Grantham turned the vehicle around with a plan to commit mass violence at Vancouver’s Lions Gate Bridge or Simon Fraser University. He did not go through with it. Later that evening, he went to the Vancouver police, where he told an officer, “I killed my mother.”