Harshaw scowled and went on, "Jill, you're forcing me to rub my own nose in it - and I don't like it, I don't like it at all!  Granted that Ben could have sent that message, it is most unlikely that he could have tampered with the daily record of that cab... and still less believable that he had any reason to.  No, let's face it.  Ben went somewhere in that cab - and somebody who could get at the records of a public carrier went to a lot of trouble to conceal where he went... and sent a phony message to keep anyone from realizing that he had disappeared."