The man who set fire to the McMinnville residence he shared with girlfriend Krista Wiegel, who later died of burns covering 80 percent of her body, pleaded guilty Tuesday to one count each of first-degree manslaughter and first-degree arson.

The manslaughter charge is considered a lesser included offense of the charge of murder. The murder charge alleged Larry Barnard intentionally killed Wiegel in the course of the July 2008 arson, but the manslaughter charge only alleges reckless disregard.

Under terms of a plea agreement, the 39-year-old defendant will be sentenced to 200 months in prison - almost 17 years - in a proceeding set for 11 a.m. Monday in Yamhill County Circuit Court.

The agreement calls for him to get 120 months on the manslaughter charge and 90 months on the arson charge, with 80 months of the arson sentence running consecutively to the arson sentence. That gives him 200 months to serve in all, or 16 years and eight months.

Barnard waived his right to appeal the sentence, which will include a lengthy period of post-prison supervision upon his release.

Judge Charles Lukenin accepted Barnard's guilty pleas in a proceeding that lasted less than a half hour. He sat handcuffed, belly-chained and shackled at the ankles alongside his court-appointed attorneys, Michael Barker and Peter Fahy of Corvallis, who negotiated the plea terms with Deputy District Attorney Lisl Miller.

Barnard entered the pleas following a settlement conference lasting 2 1/2 days. It was held last Monday and Tuesday and continued Tuesday before concluding with the plea agreement between the defense and prosecution.

Friends and relatives of Barnard and Wiegel sat on opposite sides of the courtroom. Emotions ran high as Barnard was led back to his cell. Hugs were exchanged on each side. Barnard's mother wept.

One count each of aggravated murder, attempted first-degree assault, first-degree assault, first-degree arson and reckless endangering, and two counts of second-degree assault, were dismissed as part of the plea agreement. The aggravated murder charged alleged Barnard killed Wiegel in the course of committing the Class A felony of first-degree arson.

Wiegel, 38 at the time, was sharing a doublewide manufactured home at 1187 S.W. Marie Drive with Barnard, two daughters and a nephew. Police and court records allege:

Barnard had quit taking medication for bipolar disorder and gone on a drinking binge. That alarmed Wiegel, so she went to the residence with friend Margo McGivney to gather her belongings and move out.

When the women arrived, they found Barnard acting strangely and making suicidal statements.

As they emerged from a back room with some of Wiegel's things, they encountered Barnard with a gas can in one hand and matches in the other. They saw the kitchen floor had been doused with gasoline.

When Barnard set the can down, McGivney picked it up and headed for the door. Barnard responded by lighting a cigarette and tossing the lit match onto the floor near the stove.

McGivney bolted out the front door. Barnard jumped through a bedroom window and ran across the street with no clothes on.

McGivney could hear Wiegel screaming from inside, but couldn't get to her. Barnard told police that if he had knocked Wiegel to the floor, thwarting her escape, it was an accident.

Barnard later told detective Sherry McCuistion he was angry with Wiegel, so set the house on fire with the back door locked, trapping her inside. But he insisted he didn't mean to hurt her.