Riverdale star Ryan Grantham is jailed for LIFE for shooting his mom in the back of the head Posted on September 23, 2022 By Charlielikes Ryan Grantham, 24, was sentenced to life in prison without the possibility of parole for 14 years after pleading guilty to murdering his mother in March 2020. news Tags:'is, ‘back, ‘head, ‘riverdale’, for, grantham, his, in, jailed, life’, mom, news, of, ryan, shooting, star, the, topnews, trending