Northfield Triple Homicide: All Parties ID’d; No Arrests Yet: Watch

CONCORD, NH — State and local investigators continue to investigate a triple homicide case in nearby Northfield that led to the deaths of a mother and her two children.

Kassandra Sweeney, 25, and her two sons, Benjamin Sweeney, 4, and Mason Sweeney, 1, were killed on Wednesday inside their home on Wethersfield Drive in Northfield due to single gunshot wounds. Geoffrey Ward, a senior assistant attorney general and the chief of the New Hampshire Attorney General’s Office Criminal Justice Bureau, said despite knowing all of the involved parties in the case, no arrests or charges had been filed.

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When asked if anyone was in custody and had just not been formally charged, he reiterated no one had been arrested.

Ward stated during a news conference Friday that the case was still only about 48 hours old and would not “fuel” any “speculation” about the case.

“We’ve identified all the parties involved,” he said.

Police were called to the Northfield home on Wednesday around 11:30 a.m. after receiving a 911 call for assistance. The bodies were found, and later, an autopsy determined a single gunshot wound killed all three residents, and the manner of death was homicide.

Homicide is defined as someone killing another person regardless of intent or legality.

Ward said investigators did not believe there was a threat to the general public. No one involved in the case was connected to any other homicide cases in the state, he added. Ward would not comment on any specifics about the case like when the family was killed, a timeline of the deaths, the type of gun used during the killings, and other aspects of the case. The shootings were also not random, he said.

Ward said Sean Sweeney, Kassandra Sweeney’s husband and the father of the boys, had been interviewed and was “very cooperative and helpful” with investigators. The state’s victim-witness was working with him and his family, he said, providing services.

“Obviously,” Ward said, “he is beyond devastated.”

A GoFundMe effort for the family has raised more than $25,000 from nearly 400 donors during the past two days.

The state is working with different agencies to solve the case. With this and other cases, Ward said, officials would not rest until they find the perpetrator and bring them to justice.

When asked if investigators were sure there was no danger to the public even though there have been no arrests or charges filed, Ward said, “I don’t prognosticate in any case. But I am confident we have identified the parties.”

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