Kristoffa Tailor

 was the son of Mark Morton and Elayne H'Iggyns in an extramarital affair, and brought up by his grandmother Marter Taillor to hide this fact. He wanted to know why his father was murdered, and spent his life trying to work it out. He was about to give up when Clare Marsh sparked his interest in it. He found Bernice Summerfield's diary and through this discovered that he was the reason his father was dead. Mark was going to be public announce that he had an illegitimate son, but Jahn Davies and his blackmailer Purpurin didn't want this to happen so arranged his death and framed Jason Kane. (PROSE: On Trial)