A Whitefish woman was arraigned again Thursday in Flathead County District Court, this time on murder charges related to the stabbing death of her husband.

AnnMari Helt Newton, 39, originally was charged with assault with a weapon after her husband, Chad Newton, was stabbed in the chest last Nov. 25. But Chad Newton was unresponsive until the end of December, when his family had him removed from life support at the age of 37.

During Thursday’s proceedings in Judge Ted Lympus’ court, Newton was arraigned on a mitigated deliberate homicide charge and an alternative  charge of negligent homicide, Deputy County Attorney Travis Ahner said. She can be convicted of only one of those charges.

Newton pleaded not guilty to the charges.

Ahner asked the court to increase Newton’s bond from $25,000 to $100,000 because of the increased severity of the charges against her.

“The court took that matter under advisement,” Ahner said, adding that Newton remains free on her own recognizance. However, she has been required to wear a GPS tracking device.

According to court documents, Eirik Jorgensen, a man who had been staying with the Newtons, said the couple had been drinking and arguing “more and more” in the days leading up to the stabbing.

The man said at one point he walked into the kitchen and found AnnMari Newton holding a large knife, facing her husband in a combative stance.

In court proceedings, it has been asserted by the defense that Chad Newton was also holding a knife.

Jorgensen told investigators that he turned his back on the two and heard a scream. He turned to see Chad Newton lying face-down and bleeding.

AnnMari Newton told investigators the stabbing was an accident.

Ahner said her trial schedule has not changed with the new charges. She is scheduled to appear at an omnibus hearing March 5, a pretrial conference on March 19, and her trial date has been set for April 28.

Mitigated deliberate homicide carries a possible penalty of between two and 40 years in prison and a fine of up to $50,000, while negligent homicide is punishable by up to 20 years in prison and the same fine.