Actor Ryan Grantham was sentenced to life in prison for murdering his mother.

Actor Ryan Grantham was sentenced to life in prison for murdering his mother.

According to CBC, Canadian actor Ryan Grantham, whose roles have appeared in "Riverdale," "Diary of a Wimpy Kid," and "Supernatural," has been given a life sentence with a 14-year parole Ineligibility term for his mother's second-degree murder.

In March 2020, the actor shot his mother, Barbara Waite, in the back of the head with a.22 rifle while she was playing the piano in their Squamish, British Columbia, home. Grantham then filmed a GoPro video immediately after the murder, which he showed in court, in which he confessed to killing his mother and showed her body. 

The next day, he draped a sheet over the corpse, ringed it with lighted candles, and strung a rosary from the piano before traveling east to Ottawa in a car loaded with firearms, ammo, and Molotov cocktails. His plan was to assassinate Prime Minister Justin Trudeau.

Instead, he traveled to Hope, British Columbia, with plans to carry out a mass shooting at Simon Fraser University, where he was enrolled, or on the Lions Gate Bridge. He eventually chose to surrender at the Vancouver Police Department headquarters in East Vancouver.

At the trial, Grantham's sister gave a victim impact statement, and British Columbia Supreme Court Justice Kathleen Ker described the case as "tragic" and "heartbreaking." The court described Grantham's decision to turn himself up rather than conduct mass murder as a "saving grace."

Because second-degree murder carries an automatic life sentence in Canada, Grantham wondered how long he would have to wait before applying for parole.

Grantham began acting when he was nine years old and has been in films such as "iZombie." "Unspeakable," "Way of the Wicked," "Riese," and "The Imaginarium of Doctor Parnassus."