An 87-year-old woman was killed yesterday afternoon when she struck by a pickup truck while trying to cross state Route 83, in Wooster Township.  Louella Keslar was struck shortly after five o’clock  as she attempted to cross 83, west of U.S. Route 250.  The driver of the truck that hit her, a 40-year-old Lakeville resident, was not injured.  Keslar was transported to Wooster Community Hospital, where she later died from her injuries.  The Highway Patrol continues to investigate the crash.