The Kentucky State Police has been notified by the Nashville Medical Examiner’s Office that Barbara Parker, age 70, of Murray died at the Vanderbilt Medical Center on Friday. Parker is the second person to die from injuries after a house explosion on Cook Store Trail in Calloway County. 71-year-old Kenneth Story died on the scene. Kentucky Fire Marshal Bill Swopesays the most likely cause of the September 14 explosion was a leak in a liquid propane line. Kentucky State Police spokesman Jay Thomas says investigators haven't found any signs of foul play.