
A New Hampshire teenager who killed his sister-in-law and two young nephews when he was 16 years old faced sentencing on Friday, October 3, 2025. Eric Sweeney, now 19, pleaded guilty in August to three counts of second-degree murder for the deaths of Kassandra Sweeney, 25, and her sons Benjamin, 4, and Mason, 23 months old.
According to Court TV, the murders happened on August 3, 2022, at the family’s home on Wethersfield Drive in Northfield, New Hampshire. Sweeney was living with his older brother Sean and his family at the time because Sean and Kassandra were his legal guardians.