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2nd Arrest In UNH Student Murder Case

NH Attorney General

A second arrest has been made in connection with disappearance and murder of UNH student Elizabeth Marriott. 19-year-old Portsmouth resident Kathryn McDonough has been arrested on charges of hindering apprehension or prosecution and conspiracy to hinder apprehension or prosecution.

Assistant Attorney General Peter Hinckley says McDonough was the girlfriend of Seth Mazzaglia who has been charged with Marriott’s murder.

Hinckely: On October 12th of 2012 she was spoken to by investigators who were investigating Ms. Marriott’s disappearance and gave a false alibi regarding her and Mr. Seth Mazzaglia’s whereabouts at the time of Ms. Marriott’s disappearance.

Elizabeth Marriot’s body has still not been recovered, and Mazzaglia has entered no plea in his defense.

McDonough will be arraigned on Wednesday.

Sam Evans-Brown has been working for New Hampshire Public Radio since 2010, when he began as a freelancer. He shifted gears in 2016 and began producing Outside/In, a podcast and radio show about “the natural world and how we use it.” His work has won him several awards, including two regional Edward R. Murrow awards, one national Murrow, and the Overseas Press Club of America's award for best environmental reporting in any medium. He studied Politics and Spanish at Bates College, and before reporting was variously employed as a Spanish teacher, farmer, bicycle mechanic, ski coach, research assistant, a wilderness trip leader and a technical supporter.
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