(CNN) -      The sports website Deadspin broke the story last
month that the girlfriend Te'o talked about wasn't real.  McGraw
reported in the first part of the two-part interview, which
aired Thursday, that the voice analysts had concluded that the
voice used by Tuiasosopo in the interview was likely not that of
the person who had left the voice mail messages on the gridiron
star's answering machine.  McGraw asked the confessed hoaxer
repeatedly to adopt the female voice he said he had used with
Te'o in order to prove that it was he, but Tuiasosopo refused,
saying he was not comfortable appearing on camera sounding like
a woman.  A first attempt at overcoming his objection -- putting
Tuiasosopo behind a screen in McGraw's home, where the interview
took place -- resulted in equivocal findings from the voice
analysts.  But when the venue was switched to Tuiasosopo's
house, where he said he had made the calls to Te'o, the results
were uniformly in agreement, McGraw said.  Tuiasosopo told
McGraw that the ruse ha