Proctor Math Teacher shot herself, but was it an accident?

Catherine Koestner, 30, found dead August 10 at Forge Motel in Old Forge

State police say a central New York school teacher fatally shot herself at an Adirondack motel in August, but it isn't clear if her death was a suicide or accident.

Catherine Koestner, 30, was found dead August 25, at the Forge Motel in Old Forge in Herkimer County.

Investigators released some of their findings Tuesday in a press conference.

They say the
Proctor High School Math teacher died from a single shot to the head from a handgun licensed to her boyfriend, Joseph Moore, 50, from Clinton.

The couple was staying at the Forge Motel.

A motel employee heard people arguing shortly before the shooting.

Investigators say they were drinking; Koestner's blood alcohol level was above the legal limit for driving.

Moore is called a witness, but investigators say he has stopped cooperating with the case.

Police were initially investigating the matter as a homicide.