The man called 911 about 2:07 a.m. to report that he was involved in a fight with his wife and that she was dead. The emergency call was received by York police, and they notified New Hampshire State Police, who found the woman's body around 3 a.m. at an apartment in Troy, New Hampshire, about two hours away from York, Maine.
The man was located by Kittery police by about 2:30 a.m., shortly after the initial call. State officials said his vehicle was found parked on the Piscataqua River Bridge on the southbound side but still in Maine. Public safety officials then closed the bridge to traffic and attempted to secure the area.
State officials said the negotiations, which lasted several hours, were not successful.
The man, whose identity has not yet been released, then exited the vehicle and raised a firearm. Before the man could get off a shot, Maine State Trooper Craig Nilson and two New Hampshire State Police troopers responded with deadly force.
Law enforcement then found that an 8-year-old child was fatally shot in the back seat of the man's vehicle, though law enforcement said the child's death was "not associated with the officers' use of deadly force."