On the day she disappeared, she left a note for her aunt and uncle saying she was going to visit a friend after her night class and would be home by midnight. She also texted a friend that night that she planned to visit McDonough to watch a movie. Marriott and McDonough had met recently at a Greenland department store where they both worked.
McDonough initially told police Marriott never showed up that night.
Marriott's disappearance led to a massive search, and her family and friends distributed leaflets throughout the seacoast region seeking clues to her whereabouts. Mazzaglia was arrested and charged with her death four days after Marriott was last seen.
McDonough was arrested Christmas Eve and remained in custody until Jan. 2, when she was released on $35,000 bond on the condition she live with her parents in Portsmouth.
Her willingness to testify against Mazzaglia is expected to be a condition of her plea agreement. Mazzaglia returns to court July 31. He is being held without bond.