Grantham, known for his roles in “Diary of a Wimpy Kid” and the series “Riverdale,” pleaded guilty to killing his 64-year-old mother, Barbara Waite, in March of 2020 inside her British Columbia home. He was 21 at the time.

Ryan Grantham, 24, was sentenced to life in prison without the possibility of parole for 14 years

Ryan Grantham, 24, was sentenced to life in prison without the possibility of parole for 14 years