SALISBURY - Salisbury Police are working leads to try and find who is responsible for the murder of Billy Henderson, 68, of W. Bank Street.Henderson was found stabbed to death in a back room of his home by a caretaker who had come to check on Tuesday night just after 7:00 pm.A 42-inch flat screen TV was also taken from the home the night of the murder.On Thursday, Salisbury Police Captain Shelia...