Thomas Mortimer IV admits slaughtering his family in Winchester home in 2010

10/03/2012 BOSTON, MA Middlesex County District Attorney Gerard T. Leone (cq) (left) spoke to the press at Middlesex Superior Court (cq) in Woburn. The press conference followed the trial of Commonwealth vs. Thomas Mortimer (cq) on charges of first degree murder in connection with the death of four members of his family. Leone is joined by Winchester Police Chief Kenneth C. Albertelli (cq) (center) and Lieutenant Tom Sullivan (cq) of the Massachusetts State Police (cq). (Aram Boghosian for The Boston Globe)
Middlesex District Attorney Gerard T. Leone was joined by Winchester Police Chief Kenneth C. Albertelli and Lieutenant Tom Sullivan of the Massachusetts State Police in a post-sentencing news conference.Credit: Aram Boghosian for The Boston Globe

WOBURN—Debra Stone-Sochat fought through tears today as she confronted Thomas Mortimer IV, the man who slaughtered her mother, her sister, and her sister’s two small children in a horrific act of domestic violence.

Thomas Mortimer IV, who is accused of killing his wife, two children and mother-in-law, is seen during his arraignment at Woburn Superior Court in Woburn, Mass., Thursday, Sept. 2, 2010. Authorities say 64-year-old Ellen Stone; her daughter, 41-year Laura Stone Mortimer; 4-year-old Thomas Mortimer V; and 2-year-old Charlotte Mortimer were found beaten and stabbed to death in their Winchester home in June. (AP Photo/Bizuayehu Tesfaye)
Thomas Mortimer IV, at his arraignment in 2010 (Bizuayehu Tesfaye/AP)AP

Stone-Sochat delivered a victim impact statement in Middlesex Superior Court this afternoon after her former brother-in-law, Mortimer, pleaded guilty to four counts of first-degree murder for killing his family inside their home on Windsong Lane in Winchester in June 2010.

A clean-shaven Mortimer showed no emotion as he admitted to murdering his wife, 41-year-old Laura Stone Mortimer; his children, 2-year-old Charlotte Mortimer and 4-year-old Thomas “Finn” Mortimer V; and his mother-in-law, 64-year-old Ragna Ellen Stone.

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Stone-Sochat, who was in contact with her sister, her mother, and the children on a nearly daily basis until the day they were killed, said she had struggled to regain joy in her life since the murders.

“My family has suffered an enormous tragedy. My life, my family’s life, my children’s life, has been so affected. My children wonder why they can’t have play dates with Charlotte and Finn,’’ Stone-Sochat said. “My mom and my sister were my best friends. It is difficult to find joy when the sadness is so overwhelming.’’

Mortimer, who pleaded guilty before Superior Court Judge S. Jane Haggerty, was impassive when the prosecution described the violence he had committed on his four victims, a gruesome recitation that included the number of stab wounds suffered by each victim.

When Stone-Sochat finished reading from a prepared statment she held in her shaking hands, she raised her head up and addressed the victims: “Love you. And miss you.’’

She never addressed Mortimer directly.

Defense attorney Denise Regan read aloud a letter written by Mortimer’s parents. In it, Mortimer’s parents said that they missed their grandchildren, with whom they were close, and also indirectly faulted themselves for not being aware of how depressed their son had become.

“We know our son, Thomas, has done something horrible,’’ the parents said in the letter, adding that they still consider him one of the “nicest persons’’ they have met.

“We didn’t know he was so depressed,’’ the parents said. Regan told the court that Mortimer had a documented history of treatment for depression during his life. She also said Mortimer had a “deep and profound remorse” for the murders of his family.

Haggerty accepted Mortimer’s guilty plea and sentenced him to the mandatory life in prison without the possibility of parole. Before he was led away in handcuffs, Haggerty addressed Mortimer and credited him for choosing to plead guilty and not seek a trial.

“If redemption is even possible for you in the face of these atrocities, you have taken the first step in that direction,’’ the judge said. “You have spared the family, friends, your parents, first responders, the community, jurors that would have been empaneled, the retelling and reliving of the unimaginable and gruesome details of the murders of your family.”

Mortimer did not speak in court other than to answer routine legal questions. But when Winchester police entered the blood-soaked home, they found confessions Mortimer had written on a computer and printed out for them.

“What I have done is extremely selfish and cowardly,” the former sales executive wrote in one part of his confession that has previously been made public. He described cutting his children’s throats and stabbing his wife and mother-in-law.

He awrote that he had exploded into a homicidal rage when he and his wife quarreled over a $2,499 check he wrote to the IRS that bounced.

“I took the easy way out. ... I am ashamed, frightened, relieved, surprised that I murdered my family, disgusted with myself,’’ he wrote.

Mortimer wrote that he believed his two children were better off dead than to grow up as children from a divorced home. And in one of the most chilling sections of his confession, one that his attorney tried to keep from being disclosed to the public, Mortimer said that his small son had witnessed portions of the murders before he, too, was killed.

“I expecially [sic] sorry to Finn that he had to witness these horrid acts,” Mortimer wrote. “It was not supposed to be this way.”

The murders were discovered on June 16, 2010, when Stone-Sochat went to check on her sister and mother whom she had not heard from in two days. Stone-Sochat and a neighbor first tried to force their way in, but then called authorities who went inside and found the four bodies.

Authorities later said Mortimer’s son was found on the first floor and his 2-year-old daughter was found slain in her crib.

After the plea, Middlesex District Attorney Gerard T. Leone Jr. said Mortimer should not be given any credit for choosing to plead guilty. Mortimer’s decision, the prosecutor said, was a killer’s way of avoiding a public recounting of the harm he caused.

“This is a selfish, myopic defendant who in all likelihood did not want a public forum for his heinous, unspeakable acts,’’ Leone told reporters. He said Mortimer committed the “ultimate act of domestic violence’’ when he “selfishly took the lives of his wife, his two innocent children and his mother-in-law.’’

If Mortimer had gone to trial and been convicted of even one count of first-degree murder, the sentence would have been mandatory — life in prison without parole. But he would have had the right to have his trial automatically reviewed by the Supreme Judicial Court, which could overturn such a verdict.

By entering the plea, however, Mortimer gave up his right to any appeals. Barring a gubernatorial pardon, Mortimer is now expected to die as a Department of Correction prisoner.

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