Eric Sweeney, 19, fatally shot Kassandra Sweeney, 25, and her sons, Benjamin, four, and Mason, one, while living at their Northfield home.

Eric Sweeney, 19, appeared in Merrimack Superior Court in Concord, where he admitted to the killings of his sister-in-law, 25 ...

A New Hampshire man accused of killing his sister-in-law and two young nephews when he was 16 pleaded guilty to second-degree ...

Eric Sweeney, 19, pleads guilty to killing his sister-in-law and two young nephews in Northfield, NH, avoiding a first-degree ...

A New Hampshire man accused of killing his sister-in-law and two young nephews when he was 16 pleaded guilty to second-degree ...

A New Hampshire man pleaded guilty on Friday in the fatal shootings of his sister-in-law and two young nephews three years ago, when he was a teen.

Eric Sweeney, 19, pleaded guilty Friday to three counts of reckless second-degree murder and a charge of falsifying physical ...

Watch as Eric Sweeney pleads guilty in the deaths of his sister-in-law Kassandra Sweeney and his two young nephews. Prosecutors said he killed them in their Northfield home in 2022.

A 19-year-old man, formerly of Northfield and accused of slaying his sister-in-law and two young nephews in 2022, pleaded ...

According to court records, 19-year-old Eric Sweeney plans to plead guilty Friday to three counts of second-degree murder.