Two men killed in Friday night's wrong-way, head-on collision on the Mass Pike in Ludlow have been identified.  Robert Magee of West Bridgewater and 84-year old Clarence Lux of New Britian, Connecticut were pronounced dead after the accident.  Police say the elderly man may have had a medical condition when he started driving the wrong way near exit six at the Ludlow-Springfield line.  The man he hit was a 28 year old Marine Corporal who served a tour of duty in Iraq.  Magee was en route to the Westover Air Reserve Base for reservist training at the time of the crash.