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Testimony continues in N.H. murder trial

Timothy Burt, a detective with Dover, N.H., police department, testified in the trial of Seth Mazzaglia.

Jim Cole, Pool

Timothy Burt, a detective with Dover, N.H., police department, testified in the trial of Seth Mazzaglia.

DOVER, N.H. — Prosecutors in the shocking murder trial of a University of New Hampshire student continued building their case Tuesday, calling nine witnesses after the marathon testimony of their star witness ended Monday.

Seth Mazzaglia, 31, of Dover, faces a first-degree murder charge in the 2012 slaying of 19-year-old Elizabeth “Lizzi” Marriott of Westborough, Mass. Prosecutors say Mazzaglia strangled and raped Marriott, a claim Mazzaglia’s former girlfriend Kathryn McDonough, 20, described in lurid detail in 10 days on the stand.

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Tuesday’s witnesses added small pieces to the overall puzzle. DNA expert Melisa Staples, of the New Hampshire Department of Safety, said a pair of male underwear found in a dumpster at Mazzaglia’s apartment complex had DNA consistent with the three major figures in the case: Mazzaglia, McDonough, and Marriott.

Dover Police Officer Scott Petrin said he found a GPS power cord in Marriott’s Mazda, but no GPS. He also found an iPhone cord and fingerprints on Marriott’s car door handle that were McDonough’s.

A Chester police officer said Mazzaglia was “extremely nervous” on the phone when he made his initial claim that he was out for a run on the night of Marriott’s death.

A man who lived near Mazzaglia in the Sawyer Mills apartment complex said the defendant was “very bold” and had an “alpha personality,” whereas McDonough’s demeanor was apprehensive and submissive.

Randall Bolductestified about unusual marks he saw on a path at Peirce Island in Portsmouth, where he was walking his dog on the morning after Marriott died.

“It looked like something had been dragged,” he said. McDonough has testified that she and Mazzaglia dumped Marriott’s body, stuffed into a suitcase, into the water at the island.

Other witnesses testified about the strong currents at Peirce Island, Mazzaglia’s absence from a play rehearsal on the night of Marriott’s death, and the nature of abusive relationships.

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