New information is emerging in an alleged attempted homicide north of Bozeman Wednesday evening.
According to the Gallatin County Sheriff's Office, Kathleen McDunn called 911 from her Springhill Road home, at around 5:30 p.m.
She told dispatchers her husband had been shot by a woman named Diana Arnold, and that he was holding her down until deputies could arrive. Investigators later found the McDunns and Arnold were involved in an ongoing civil lawsuit.
"All of the evidence points towards that it was pre-planned and that she did break into the single-wide trailer and she was waiting there when he got home," said Gallatin County Sheriff Brian Gootkin
Sheriff Gootkin says Henry McDunn was shot twice, once in the head and once in the chest. He is being treated at Bozeman Deaconess Hospital.
Deputies reported a screen had been cut from one of the mobile home's windows, and a ladder was leaning against the siding. Investigators say they also found a .22 caliber pistol at the scene, as well as evidence of attempted arson.
Arnold was also taken to Bozeman Deaconess Hospital with injuries. She was released and booked in the Gallatin County Detention Center on charges of Attempted Deliberate Homicide, Aggravated Burglary and Attempted Arson. Arnold will appear in Justice Court tomorrow.
NBC Montana dug into the relationship between the McDunns and Arnold. According to court documents, Arnold was the McDunns' landlord. The McDunns lived in her basement apartment from June 2008 to January 2009. She lived in the main house, located in the 3000 block of Bear Canyon Road in Bozeman.
The couple moved out, after claiming Arnold failed to address property maintenance issues, created a noisy environment and repeatedly entered their apartment without warning and without permission.
Arnold refused to return the McDunns' security deposit when they moved out, claiming they violated the lease agreement. The McDunns sued Arnold, and a judge ruled in their favor, forcing her to repay most of the security deposit -- $1,092 plus costs and attorney fees.
The judge rejected Arnold's counterclaims -- that the McDunns owed her money for cleaning and other expenses.