Hayley was the daughter of Michael and Elizabeth. Elizabeth and Hayley are both shown for the first (and only) time in One Way, in which Michael has flashbacks to their death by carbomb. Michael mentions buying an ideal house as a surprise for her and Elizabeth in Covenants to Nikita. Prior to Covenants, Michael sought vengeance for the death of his family. Kasim Tariq was instructed by Percy to kill Michael to be able to join Al-Qaeda, but instead accidentally kill his wife and daughter.