New HampshireDepartment of JusticeOffice of the Attorney General

News Release

For Immediate Release
August 11, 2022

Michael S. Garrity, Director of Communications | (603) 931-9375

Geoffrey W.R. Ward, Senior Assistant Attorney General
Chief, Criminal Justice Bureau | (603) 545-1737

Bethany Durand, Assistant Attorney General

Meghan Hagaman, Assistant Attorney General

Juvenile Charged in Connection with Northfield Homicides

Concord, NH – Attorney General John M. Formella, State Police Colonel Nathan Noyes, and Northfield Police Chief John Raffaelly announce that an arrest has been made in connection with the triple homicide in Northfield.

A juvenile has been arrested and charged under the juvenile laws with three counts of first-degree murder and one count of falsifying physical evidence in connection with the homicides of Kassandra Sweeney, age 25, and her two sons Benjamin Sweeney, age 4, and Mason Sweeney, age 1, in Northfield on August 3, 2022.

As previously reported, the investigation to date has revealed that on August 3, 2022, at approximately 11:33 a.m., law enforcement officers arrived at 56 Wethersfield Drive in Northfield, New Hampshire in response to a 911 call for service. Upon their arrival, officers located the three deceased individuals inside the residence.

Autopsies were conducted by Chief Medical Examiner Dr. Jennie V. Duval. Dr. Duval determined that the cause of Ms. Sweeney's death was a single gunshot wound, and the manner of her death was homicide. In addition, Dr. Duval determined that the cause of Benjamin's death was a single gunshot wound, and the manner of his death was homicide. Dr. Duval also determined that the cause of Mason's death was a single gunshot wound, and the manner of his death was homicide.

Since the alleged perpetrator is a juvenile, the law precludes any further information from being released. See RSA 169-B:36, I ("It shall be unlawful for any person to disclose court records or any part thereof to persons other than those persons entitled to access under RSA 169-B:35, except by court order. Any person who knowingly violates this provision shall be guilty of a misdemeanor.").

The charges and allegations against the juvenile are merely accusations, and he is presumed innocent unless and until proven guilty.

New Hampshire Department of Justice
1 Granite Place South | Concord, NH | 03301
Telephone: 603-271-3658