AUBURN, Maine (NEWS CENTER) — Some disturbing details have been released about the death of a woman in the town of Jay, who was killed inside the home she shared with her boyfriend.

That boyfriend, James Sweeney, is accused of murder in the death of Wendy Douglass. Documents released shortly after Sweeney’s appearance in court Thursday shed light on what happened to Douglass, what was going on with their relationship and the state’s case against Sweeney.

According to the police affidavit, Sweeney turned himself into the Androscoggin County Jail Tuesday morning and handed authorities a note that read "I’m going to jail cause I hurt my girlfriend."

When police arrived at the home in Jay he shared with his girlfriend, they found the body of Wendy Douglass in her bed with injuries to her face.

"The cause of death is blunt force trauma to the head," said Deputy Attorney General Lisa Marchese. "Mr. Sweeney appeared to have killed our victim as she was sleeping."

Investigators found a wooden baseball bat covered in blood hidden near some stairs. Family members told investigators Douglass had broken up with Sweeney a week ago, but the two were still living together.

"Ms. Douglas was contemplating leaving him and, as we know, leaving can be the most dangerous time," Marchese said. "He was losing control and he killed her."

Marchese said this is another case of domestic violence, an issue state leaders have been working hard to try to curb. It comes right on the heels of another case that left three victims dead and fourth injured in the town of Madison.

"To have these two domestic violence homicides back-to-back, from a prosecutor’s perspective and from my working with victims, it’s very disappointing and difficult," she said.

Sweeney is being held without bail at the Androscoggin County Jail.