HILLSBOROUGH, N.H. (WHDH) - Officials investigating the suspicious deaths of a Hillsborough, New Hampshire man and his infant daughter say the man committed suicide by gunshot, but have not given a cause of death for his daughter.

Officers responding to a Bridge Street apartment in Hillsborough, New Hampshire, on Sunday found Miles Deuse, 39, and his daughter Makenzi Deuse, dead in the building, police said.

After an autopsy performed Monday, Miles Deuse’s manner of death was determined to be suicide caused by a gunshot wound to the head.

The cause and manner of Makenzie Deuse’s death are pending further investigation.

All identified parties have been identified and there is no threat to the public, according to police.

The investigation remains active and no further information is expected until Makenzie Deuse’s autopsy has been finalized.

Anyone who believes they may have information about the incident is asked to contact New Hampshire State Police Sgt. Stephen Sloper at 603-628-8477.

This is a developing news story; stay with 7NEWS on-air and online for the latest details. 

(Copyright (c) 2025 Sunbeam Television. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)

Join our Newsletter for the latest news right to your inbox