Man convicted in rape, murder of college student

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Seth Mazzaglia and Kathryn McDonough
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Man convicted in rape, murder of college student
Seth Mazzaglia, right, leaves the courtroom for the lunch break in Strafford County Superior Court, Wednesday, June 25, 2014 in Dover, N.H. The defense gave its closing arguments in Mazzaglia's first-degree murder trial. He is accused of killing Elizabeth "Lizzi" Marriott. (AP Photo/Jim Cole)
Seth Mazzaglia, right, watches as the courtroom is cleared before he leaves for the lunch break in Strafford County Superior Court, Wednesday, June 25, 2014 in Dover, N.H. The defense gave its closing arguments in Mazzaglia's first-degree murder trial. He is accused of killing Elizabeth "Lizzi" Marriott. (AP Photo/Jim Cole)
Defendent Seth Mazzaglia, right, is lead from the courtroom Friday, June 27, 2014 in Strafford County Superior Court in Dover, N.H. after he was found guilty of murder for the the Oct. 9, 2012 strangulation death of 19-year-old Elizabeth "Lizzi" Marriott, who was a student at the University of New Hampshire. He will be sentenced to life in prison without the chance of parole. (AP Photo/Portsmouth Herald, Rich Beauchesne, Pool)
Bob Marriott, father of Elizabeth “Lizzi” Marriott, makes a brief statement in behalf of the Marriott family at the Strafford County Superior Court in Dover, N.H., after Seth Mazzaglia was found guilty of two counts of murder for the strangulation death Elizabeth “Lizzi” Marriott on Oct. 9, 2012. (AP Photo/The Portsmouth Herald, Rich Beauchesne, Pool)
A tearful Bob Marriott, father of Elizabeth “Lizzi” Marriott, makes a brief statement in behalf of the Marriott family at the Strafford County Superior Court in Dover, N.H., after Seth Mazzaglia was found guilty of two counts of murder for the strangulation death Elizabeth “Lizzi” Marriott on Oct. 9, 2012. (AP Photo/The Portsmouth Herald, Rich Beauchesne, Pool)
Strafford County Superior Court Judge Steven Houran instructs the jury before handing over the case for deliberation in the murder trial of Seth Mazzaglia in Dover, N.H., on Thursday, June 26, 2014. Mazzaglia is accused of killing University of New Hampshire student Elizabeth "Lizzi" Marriott. (AP Photo/Union Leader, David Lane, POOL)
Defendant Seth Mazzaghlia leaves the courtroom Tuesday, June 24, 2014 in Strafford County Superior Court in Dover, N.H. The defense rested its case Tuesday. Mazzaglia is charged with first-degree murder in the October 2012 death of 19-year-old Elizabeth "Lizzi" Marriott of Westborough, Massachusetts. (AP Photo/Jim Cole, Pool)
Denise McDonough of Dover, N.H. the mother of Kathryn McDonough, testifies while being questioned by defense attorney Joachim Barth during the trial of Seth Mazzaglia at Strafford County Superior Court in Dover, N.H.on Wednesday, June 18, 2014. Mazzaglia is charged with killing 19-year-old UNH student Elizabeth "Lizzi" Marriott and dumping her body in the Piscataqua River in Portsmouth. (AP Photo/Union Leader, David Lane, Pool)
Denise McDonough of Dover, N.H., the mother of Kathryn McDonough, testifies while being questioned by the prosecution during the trial of Seth Mazzaglia at Strafford County Superior Court in Dover, on Wednesday, June 18, 2014. Mazzaglia is charged with killing 19-year-old UNH student Elizabeth "Lizzi" Marriott and dumping her body in the Piscataqua River in Portsmouth. (AP Photo/Union Leader, David Lane/POOL)
Kathryn McDonough testifies 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)
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 exits the courtroom during the end of his first day of trial at Strafford County Superior Court, Wednesday, May 28, 2014, in Dover, N.H. Authorities say Mazzaglia strangled University of New Hampshire sophomore Elizabeth "Lizzi" Marriott on Oct. 9, 2012, at the Dover apartment he shared with his then-girlfriend, Kathryn McDonough. Mazzaglia has pleaded not guilty in the case. (AP Photo/Portsmouth Herald, Rich Beauchesne, Pool)
Seth Mazzaglia gets escorted out of the courtroom as Judge Steven Houran gave his case to jurors for deliberation at Strafford County Superior Court in Dover, N.H., on Thursday, June 26, 2014. Mazzaglia is accused of killing University of New Hampshire student Elizabeth "Lizzi" Marriott. (AP Photo/Union Leader, David Lane, POOL)
Seth Mazzaglia returns to his trial in Strafford County Superior Court, Wednesday, May 28, 2014 in Dover, N.H. Authorities say Mazzaglia strangled University of New Hampshire sophomore Elizabeth "Lizzi" Marriott on Oct. 9, 2012, at the Dover apartment he shared with his then-girlfriend, Kathryn McDonough. Mazzaglia has pleaded not guilty in the case. (AP Photo/Portsmouth Herald, Rich Beauchesne, Pool)
Kathryn McDonough looks in the direction of her former bouyfriend Tuesday June 3, 2014 in Strafford Sounty Superior Court in Dover, N.H. McDonough is the state's key witness against her former boyfriend Seth Mazzaglia charged with first-degree murder in the 2012 death of Elizabeth "Lizzi" Marriott of Westborough, Massachusetts. (AP Photo/The 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)
Kathryn McDonough testifies Tuesday June 3, 2014 in Strafford County Superior Court in Dover, N.H. McDonough is the state's key witness against her former boyfriend Seth Mazzaglia, who is charged with first-degree murder in the 2012 death of Elizabeth "Lizzi" Marriott of Westborough, Massachusetts. (AP Photo/The Herald, Rich Beauchesne, Pool)
Joachim Barth, defense attorney for Seth Mazzaglia, delivers his opening arguments in Mazzaglia's first-degree murder trial in Strafford County Superior Court Wednesday May 28, 2014, in Dover, N.H. Mazzaglia is charged with raping and killing Elizabeth “Lizzi” Marriott of Westborough, Mass., and dumped the teens body into the Piscataqua River which feeds into the Atlantic Ocean. Her body has never been found. In his opening arguments Barth said the state's key whittness Kathryn McDonough is the killer. (AP Photo/The Herald, Rich Beauchesne, Pool)
State prosecutor Peter Hinckley delivers his opening arguements in the murder trial against Seth Mazzaglia Wednesday, May 28, 2014 in Strafford County Superior Court in Dover, N.H. Authorities say Mazzaglia strangled University of New Hampshire sophomore Elizabeth "Lizzi" Marriott on Oct. 9, 2012, at the Dover apartment he shared with his then-girlfriend, Kathryn McDonough. Mazzaglia has pleaded not guilty in the case. (AP Photo/Portsmouth Herald, Rich Beauchesne, Pool)
Joachim Barth, defense attorney for Seth Mazzaglia, delivers opening arguments in Strafford County Superior Court Wednesday, May 28, 2014 in Dover, N.H. Authorities say Mazzaglia strangled University of New Hampshire sophomore Elizabeth "Lizzi" Marriott on Oct. 9, 2012, at the Dover apartment he shared with his then-girlfriend, Kathryn McDonough. Mazzaglia has pleaded not guilty in the case. (AP Photo/Portsmouth Herald, Rich Beauchesne, Pool)
Seth Mazzaglia stands in court during a break in opening arguements at the start trial in Strafford County Superior Court, Wednesday, May 28, 2014 in Dover, N.H. Authorities say Mazzaglia strangled University of New Hampshire sophomore Elizabeth "Lizzi" Marriott on Oct. 9, 2012, at the Dover apartment he shared with his then-girlfriend, Kathryn McDonough. Mazzaglia has pleaded not guilty in the case. (AP Photo/Portsmouth Herald, Rich Beauchesne, Pool)
Seth Mazzaglia looks around the courtroom during the start of his trial in Strafford County Superior Court, Wednesday, May 28, 2014 in Dover, N.H. Authorities say Mazzaglia strangled University of New Hampshire sophomore Elizabeth "Lizzi" Marriott on Oct. 9, 2012, at the Dover apartment he shared with his then-girlfriend, Kathryn McDonough. Mazzaglia has pleaded not guilty in the case. (AP Photo/Portsmouth Herald, Rich Beauchesne, Pool)
In this photo taken from a television monitor in district court in Derry, N.H.. Kathryn McDonough appears during her video arraignment from the Rockingham County jail in Brentwood, N.H. Bail was set at $35,000 for McDonough, who is charged with lying to investigators about her whereabouts and involvement in the disappearance and death of a college student her boyfriend is accused of killing. (AP Photo)
In this photo taken from a television monitor in district court in Derry, N.H.. Kathryn McDonough, left, appears during her video arraignment with lawyer Ryan Russman from the Rockingham County jail in Brentwood, N.H. Bail was set at $35,000 for McDonough, who is charged with lying to investigators about her whereabouts and involvement in the disappearance and death of a college student her boyfriend is accused of killing. (AP Photo)
FILE - This undated file photo provided by the New Hampshire State Police shows Kathryn McDonough of Portsmouth, N.H. McDonough, who allegedly lied to police about the disappearance of University of New Hampshire sophomore Elizabeth "Lizzi" Marriott last fall, will plead guilty to all charges against her Thursday, July 25, 2013. (AP Photo/New Hampshire State Police, File)
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By LYNNE TUOHY

DOVER, N.H. (AP) - A jury on Friday convicted a 31-year-old man of killing and raping a University of New Hampshire college student following a trial filled with lurid details of sexual domination, experimentation and violence.

The jury in Strafford Superior Court found Seth Mazzaglia guilty of first-degree murder in the death of 19-year-old Elizabeth "Lizzi" Marriott of Westborough, Massachusetts, in October 2012.

The key witness, 20-year-old Kathryn McDonough, was Mazzaglia's girlfriend when she lured Marriott to their apartment. She testified that Mazzaglia wanted another woman to join their sexual escapades, which included bondage and discipline.

McDonough first told investigators that Marriott died during rough sex between the two women that involved restraints. After getting immunity from prosecution, McDonough changed her story and said Mazzaglia strangled Marriott then raped her. After Marriott was dead, Mazzaglia and McDonough dumped her body in river. It has never been found.

Mazzaglia was found guilty of one count of first-degree murder that stated he strangled Marriott "before, after or while" sexually assaulting her. He also was convicted of conspiracy to falsify evidence and conspiracy to tamper with witnesses.

Mazzaglia showed no emotion as the verdict was read. He was led from the courtroom in handcuffs.

He will be sentenced to life in prison without the chance of parole.

Marriott's father, Bob, said the family is grateful for the verdict but that even a life sentence will never soothe their grief. Marriott gave a police officer a bear hug after the verdicts were read.

"We will always miss her and we wonder what could have been," Marriott said, his voice quavering. "In fact, the trial has been torturous for us. The truth of what happened to Lizzi is horrendous. And every time it's been told, it has reinforced the despair that we feel."

Marriott said the verdict will keep a dangerous man off the streets and protect other women.

He also had harsh words for Mazzaglia's lawyers for what he called intentionally misstating his daughter's action the night she died.

"Blaming a victim who is unable to defend herself is a typical ploy used by defense teams. If you are dead, you cannot correct a mischaracterization," he said.

Mazzaglia's lawyers did not comment after the verdict.

Jurors began deliberating Thursday, after hearing 19 days of testimony. McDonough was on the stand for 10 of those days.

The trial hinged on McDonough's credibility. Mazzaglia did not testify.

McDonough initially told investigators that she killed Marriott during consensual sex but later said she made that story because she loved Mazzaglia, thought they still had a future together and wanted to protect him.

Defense lawyers, though, painted her as an opportunistic liar who killed Marriott then changed her story when she found out she could cut a deal and get less time in prison if she pinned the crime on her ex-boyfriend.

The deal was conditioned on her testifying truthfully and juror Maria Clifford said the panel thought she did.

"The main thoughts were that she was a pathological liar most of her life and up until she took that witness stand, her life had been based upon lie after lie after lie," said Clifford, 52. "I think Mr. Mazzaglia had control over her and she was afraid of him. We just thought, 'She's on the witness stand now and she doesn't have anything left to lose,' and she came to the realization that 'I need to do the right thing.'"

Clifford said she approached the trial as if Mazzaglia was one of own family members.

"Everybody deserves a fair trial, no matter what they did," she said.

In court, McDonough testified that Mazzaglia was the sexually dominant partner in their relationship and became angry when she left for nearly two weeks at theater camp without recruiting a sex partner for him. As what she called punishment, Mazzaglia told her to lure a woman - Marriott - to the apartment on Oct. 9, 2012.

After a game of strip poker which prosecutors say Marriott willingly joined, Mazzaglia suggested she kiss McDonough. Marriott said no, saying she was in a committed relationship. Mazzaglia then asked if she would watch as he and McDonough had sex. She again said no.

Prosecutors said the domineering Mazzaglia was unaccustomed to being rejected so, as the two women watched a movie, he sneaked up behind Marriott and choked her with a rope. McDonough testified that she left the room briefly and when she returned, found Mazzaglia raping Marriott's limp body.

Mazzaglia's lawyers said McDonough, who pleaded guilty to hindering prosecution and is spending 1 ½ to 3 years in prison, was interested in experimenting with women and initiated the sexual activity that night in the apartment she shared with Mazzaglia.

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