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Aug 29, 2016 5:32 PM

UPDATE: Emotional day in court as woman is found guilty of killing her 3-year-old daughter


NASHUA — A judge has found Katlyn Marin guilty of second-degree murder in the beating death of her 3-year-old daughter, Brielle Gage.

Gage was found dead in her home on the morning of November 25, 2014, after Marin - who says she now goes by Gage - called 9-1-1.

During the two-week trial, the court learned emergency crews knew almost immediately the child’s death wasn’t accidental, and she died of blunt force trauma to the head.

Hillsborough County Superior Court Judge Charles Temple decided the ruling as Marin opted for a bench trial, meaning there was no jury involved in the decision.

The courtroom was full of Marin’s family, as well as members of the Nashua Police Department, as he handed down the guilty verdict.

“I think that we will always be incredibly sad and haunted at the thought of what her final moments were like in life,” said Senior Assistant Attorney General Jeffrey Strelzin.

Temple kept the proceeding brief, but used harsh words for both Marin and her ex-fiancé and father-figure to Brielle, Michael Rivera.

“Make no mistake, there were two killers in that bedroom with Brielle,” Temple said. “One was a silent killer, devoid of any moral compass, absolutely morally corrupt. A despicable human being."

Rivera has not been charged in Gage's death and was the only eye witness who could testify to the abuse.

Temple also had choice words for Marin and spoke as if he were addressing Brielle directly, saying she deserved more out of life and will not be “reduced to an exhibit.”

“I tell everyone in this courtroom, including you, Miss Gage, that Brielle no longer lives in fear,” he said. “Brielle no longer sheds any tears at all. Brielle is at peace, thankfully.”

Temple approved the prosecution’s request for an expanded sentence, and while Marin was facing other charges including manslaughter, he decided to rule on the highest-level conviction alone.

In other words, Marin is now facing 35 years to life in prison.

“I feel that justice was served, but there’s a great deal of sadness involved with this verdict,” said Kerry Baxter of the Nashua Police Department, who led the investigation into Gage’s. “We shouldn’t be here because people shouldn’t kill kids, and parents should not kill their child.”

Neither Marin’s defense, nor her family, nor Rivera spoke to the media after the proceeding.

Temple set aside an entire day this winter for Marin’s sentencing, which is scheduled for December 2.


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