Police say mom was killed by son after video game argument

Twenty-eight-year-old Matthew Nicholson of Ceres was arrested Thursday night on suspicion of murder. It's unclear whether he has an attorney. Police called to Nicholson's home found his 68-year-old mother with a head wound. She died at a hospital. Police said Lydia Nicholson went to check on her son in his bedroom after she heard him shouting because grew enraged as he played a video game.