David Guralnick/ReutersOxford school shooter Ethan Crumbley is planning to appeal his sentence of life without parole and will be advised not to say anything if he’s called to testify at either of his parents’ trials, his new lawyers said in a court filing. The 17-year-old pleaded guilty to 24 charges in connection with the 2021 mass shooting at Oxford High School in Michigan. In a court filing Monday, appellate defenders Alison Swain and Jacqueline Ouvry wrote to the Oakland County Circuit Cour