Strip poker preceded student's killing

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Strip poker before murder
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Strip poker preceded student's killing
FILE - This photo provided by the Dover (N.H.) Police Dept. shows Seth Mazzaglia. Court documents released Tuesday April 23, 2013 charge Mazzaglia of Dover with killing 19-year-old Elizabeth "Lizzi" Marriott during an attempted sexual assault on Oct. 9. (AP Photo/Dover Police)
Kathryn McDonough weeps as she testifies Tuesday June 3, 2014 in Strafford Sounty Superior Court in Dover, N.H. how she was tied up, blind folded and had abusive sex as punishment be her then boyfriend Seth Mazzaglia. McDonough is the state's key witness against her former boyfriend Mazzaglia charged with first-degree murder in the 2012 death of Elizabeth "Lizzi" Marriott.(AP Photo/Portsmouth Herald, Rich Beauchesne, POOL)
Prosecutor Peter Hinckley questions witness Kathryn McDonough, right, during her former boyfriend Seth Mazzaglia's first-degree murder trail at Strafford County Superior Court, Tuesday, June 3, 2014, in Dover, N.H. Mazzaglia is on trial for allegedly killing Elizabeth "Lizzi" Marriott, a University of New Hampshire student, in his Dover N.H. apartment on Oct. 9, 2012. (AP Photo/The Herald, Rich Beauchesne, Pool)
Witness Kathryn McDonough, right, is escorted out of the courtroom during the morning break in her former boyfriend Seth Mazzaglia's first-degree murder trail at Strafford County Superior Court, Tuesday, June 3, 2014, in Dover, N.H. Mazzaglia is on trial for allegedly killing Elizabeth "Lizzi" Marriott, a University of New Hampshire student, in his Dover N.H. apartment on Oct. 9, 2012. (AP Photo/The Herald, Rich Beauchesne, Pool)
Seth Mazzaglia looks toward the row of family and friends of Elizabeth "Lizzi" Marriott as he leaves for a morning break in his trial at Strafford County Superior Court, Tuesday, June 3, 2014, in Dover, N.H. Mazzaglia is on trial for allegedly killing Marriott, a University of New Hampshire student in his Dover N.H. apartment on Oct. 9, 2012. (AP Photo/The Herald, Rich Beauchesne, Pool)
FILE - In this Oct. 15, 2012 file photo, Seth Mazzaglia, bottom center, stands during his video arraignment from the Strafford County jail in Dover, N.H., to the district court in Dover, N.H. Mazzaglia was charged with killing Elizabeth "Lizzi" Marriott, a 19-year-old University of New Hampshire student. The death of Marriott, according to court documents unsealed in May 2013, shows a tangled tale involving a karate instructor, his girlfriend, and a young victim described by a family member as gullible. (AP Photo/Jim Cole, File)
Roberta Gerkin of Rochester, N.H, walks past defendent Seth Mazzaglia, left, after giving testimony about the brief relationship she had with Mazzaglia in 2011, during day three of the murder trial at Strafford County Superior Court in Dover, N.H., Friday, May 30, 2014. Mazzaglia is charged with first-degree murder in the Oct. 9, 2012 death of 19-year-old Elizabeth "Lizzi" Marriott of Westborough, Mass. (AP Photo, Union Leader, David Lane, Pool)
In this Saturday, Oct. 13, 2012 photo, a Portsmouth fire boat joins the search of the Piscataqua River in Portsmouth, N.H., for the body of missing University of New Hampshire student Elizabeth "Lizzi" Marriott of Westborough, Mass. Seth Mazzaglia of Dover, N.H., is accused of strangling or suffocating Marriott on Tuesday, Oct. 9, the day she disappeared. A judge ordered the 29-year-old martial arts instructor held without bail Monday, Oct. 15, on a second-degree murder charge in connection with Marriott's death. Marriott's body hasn't been found and officials are expected to decide Monday how to proceed in the search. (AP Photo/Jim Cole)
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DOVER, N.H. (AP) - The woman who says she watched her ex-boyfriend strangle a 19-year-old University of New Hampshire student has testified the three of them played strip poker before the killing.

Twenty-year-old Kathryn McDonough resumed testifying Wednesday in the trial of Seth Mazzaglia (muh-ZAYL'-yuh). She testified Tuesday that he strangled Elizabeth "Lizzi" Marriott on Oct. 9, 2012.

Prosecutors say Marriott rebuffed his sexual advances.

McDonough testified Marriott agreed to play strip poker with her and the 31-year-old Mazzaglia. She said she and Mazzaglia wound up naked.

McDonough testified she lost the next round, and so Mazzaglia suggested she kiss Marriott. She said Marriott objected.

Mazzaglia's lawyers told jurors that McDonough killed Marriott during rough sex. They say Mazzaglia helped dispose of her body and took blame because of his love for McDonough.

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