US EditionNew Hampshire Teen Who Killed Sister-in-Law and Nephews Sentenced to 60 Years to Life in Prison
Eric Sweeney will serve at least 60 years after the 2022 murders of his sister-in-law and two nephews, reflecting the judge's focus on both punishment and potential rehabilitation.
- On Friday, Merrimack Superior Court Judge John Kissinger sentenced Eric Sweeney, who was 16 at the time, for killing sister-in-law Kassandra Sweeney and nephews Benjamin and Mason in Northfield.
- Sweeney grew up amid severe childhood trauma and instability, living with a chaotic, drug-addicted mother and suffering abuse, neglect, malnutrition, and homelessness.
- On Aug. 3, 2022, court records show Kassandra Sweeney watched as Eric Sweeney fired six times, killing Mason and Benjamin, who was shot through the hood of a dinosaur costume.
- More than a dozen victims' relatives and friends condemned Sweeney in victim impact statements, while Judge John Kissinger acknowledged Sweeney's abuse and questioned if rehabilitation is possible.
- Prosecutors asked for at least 97 years while defense attorneys Lauren Prusiner and Morgan Taggart-Hampton urged mercy, citing Sweeney's traumatic childhood and raising a constitutional argument.
14 Articles
14 Articles
US Teen Sentenced To 60 Years In Jail For Killing Sister-In-Law, 2 Nephews
A young New Hampshire man who was 16 when he killed his sister-in-law and two young nephews was sentenced Friday to 60 years to life in prison for crimes his lawyer said he doesn't remember committing.
Teen Sentenced to 60 Years To Life for Triple Murder
Terry Southwick is comforted as he listens to testimony about his daughter, Kassandra Sweeney, and his two grandsons during the sentencing hearing for Eric Sweeney at Merrimack County Superior Court on Friday, October 3, 2025. GEOFF FORESTER/Concord Monitor pool photo By DAMIEN FISHER, InDepthNH.org Eric Sweeney turned 16 the week before he murdered his sister-in-law Kassandra Sweeney, 25, along with his nephews Benjamin, 4, and Mason, 23-months…
Judge sentences Northfield man who admitted killing sister-in-law, nephews to decades in prison
A judge on Friday sentenced a Northfield man who pleaded guilty to killing his sister-in-law and young nephews to decades in prison with a "narrow" possibility at parole.
Eric Sweeney sentenced in murders of sister-in-law, nephews
A 19-year-old who admitted to killing his sister-in-law and two young nephews inside their Northfield home in 2022 was sentenced this afternoon to 54 years to life in prison. He is eligible for parole at age 70.
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