Murder Suspect's Girlfriend Indicted

UPDATED, 2:30 p.m.

Kathryn McDonough, the girlfriend of a Dover man charged with killing a University of New Hampshire student in his apartment last fall, has been indicted by a Rockingham County Grand Jury.

According to court documents, McDonough has been indicted for three felony counts of witness tampering, hindering apprehension or prosecution and conspiracy to commit hindering apprehension or prosecution related to the murder of Elizabeth Marriott that authorities say was committed by Seth Mazzaglia of Dover.

McDonough, who is currently free on bail and lives with her parents in Portsmouth, allegedly gave investigators a false alibi about her whereabouts and Seth Mazzaglia's whereabouts on Oct. 9 and the lack of interaction with Marriott on Oct. 9. The conspiracy related charge alleges that she gave Newington Police investigators a false alibi on Oct. 12 regarding her whereabouts and Mazzaglia's whereabouts on Oct. 9.

The court documents also allege that she committed witness tampering when she asked Robert Gerkin to lie to investigators and say that he did not enter the Dover apartment where she and Mazzaglia lived.

Mazzaglia is currently being held without bail at the Strafford County Jail in Dover and Marriott's body, which authorities believe was dumped into the Piscataqua River following her murder, has not been found.

Earlier story

Foster's Daily Democrat is reporting that Kathryn McDonough, the girlfriend of accused murderer Seth Mazzaglia, has been indicted in connection with the death of University of New Hampshire student Elizabeth Marriott last year.

The newspaper said it isn't clear yet whether McDonough has been indicted on one or more charges. The indictments are expected to be released today.

McDonough, 19, of Portsmouth, was charged in December with lying to police about the whereabouts of Mazzaglia, who is charged with second degree murder in connection with Marriott's death in October.

According to police, McDonough lied to authorities when questioned about the whereabouts of Mazzaglia, 30, of Dover. She has been free on bail since January.

Mazzaglia has not yet been indicted in connection with Marriott's death. A judge gave the attorney general's office until April 18 to present the case to the grand jury.

The attorney general's office alleges that Mazzaglia strangled or suffocated Marriott on Oct. 9 in his Dover apartment. Marriott had attended a class at the University of New Hampshire that night and headed to Dover to see some friends.

Authorities launched a massive search for Marriott's body that began in October, but no trace of her body has yet been found. Some of the areas where New Hampshire Marine Patrol and New Hampshire Fish and Game conservation officers focused their search were around Peirce Island in Portsmouth and off Fox Point in Newington.