July 16, 2013

Woman to enter guilty plea in UNH student case

The Associated Press

BRENTWOOD, N.H. — A New Hampshire woman charged with lying to investigators about her whereabouts the day a University of New Hampshire student was killed is scheduled to enter a guilty plea and be sentenced next week.

click image to enlarge

This undated file photo provided by the New Hampshire State Police shows 19-year-old Kathryn McDonough of Portsmouth, N.H.


click image to enlarge

This undated family photo shows Elizabeth "Lizzi" Marriott, who disappeared on Oct. 9, 2012, has been declared dead.


Prosecutors say 19-year-old Kathryn McDonough lied when she told investigators she had no contact with Elizabeth "Lizzi" Marriott on Oct. 9 — the day they say the UNH student was strangled or suffocated. Prosecutors say McDonough also gave a false alibi for her and the man charged with killing Marriott, Seth Mazzaglia.

Court records say McDonough is scheduled for the plea hearing and sentencing in Rockingham County Superior Court on July 25. She's charged with witness tampering, hindering prosecution and conspiracy to hinder prosecution.

The body of 19-year-old Marriott of Westborough, Mass., has not been found.

Prosecutor Peter Hinckley declined to comment on the case Tuesday.

Mazzaglia, 30, has a July 31 scheduled appearance in the Rockingham court.

Mazzaglia says Marriott's death was an accident during a night of consensual sex that also involved McDonough. He told investigators he and McDonough used Marriott's car to take her body to Peirce Island in Portsmouth, where they threw it and her cellphone into the Piscataqua River.

Were you interviewed for this story? If so, please fill out our accuracy form

Send question/comment to the editors

Further Discussion

Here at PressHerald.com we value our readers and are committed to growing our community by encouraging you to add to the discussion. To ensure conscientious dialogue we have implemented a strict no-bullying policy. To participate, you must follow our Terms of Use.

Questions about the article? Add them below and we’ll try to answer them or do a follow-up post as soon as we can. Technical problems? Email them to us with an exact description of the problem. Make sure to include:
  • Type of computer or mobile device your are using
  • Exact operating system and browser you are viewing the site on (TIP: You can easily determine your operating system here.)