MUNCY, Pa. (AP) — Authorities say a woman was killed when she fell into a meat grinder at a processing plant in northern Pennsylvania. It’s not clear what caused the accident at the Economy Locker Storage Company in Muncy. The Lycoming County coroner’s office says 35-year-old Jill Greninger fell late Monday morning. Her body was found by a co-worker who heard strange noises coming from the commercial machine. Greninger may have been standing on a set of wheeled stairs prior to the fatal accident.