By Alex Dobuzinskis (Reuters) – Canadian actor Cory Monteith, 31-year-old heartthrob of Fox's musical comedy television series "Glee", was found dead on Saturday in his Vancouver hotel room, police said. Police and paramedics found no signs of foul play and the cause of death was not clear, British Columbia Chief Coroner Lisa Lapointe said at a news conference. Monteith had talked openly about struggles with substance abuse, and in April he completed voluntary treatment for unspecified substance addiction at a rehab facility. He had also been treated in a facility at age 19. …