Michael Peterson was confused by a "remarkable twist of fate" at the end of his This Morning interview.
The 78-year-old is the subject of the the documentary series, The Staircase. The 13 part programme follows the novelist's trial as he was convicted in 2003 of murdering his wife, Kathleen Peterson.
Peterson was granted a new trial eight years later when a judge ruled a critical prosecution witness gave a misleading testimony. He submitted an Alford plea in 2017 and the charge was reduced to manslaughter.
