A Cody man has been ordered to serve four to six years in prison for stabbing his mother in 2024.

Robert Rednour, 40, agreed to the sentence in January as part of a plea deal with prosecutors on a felony count of aggravated assault and battery. He’s already served a significant chunk of his sentence, as he’s been in custody since the November 2024 attack at his home in rural Cody.

Charging documents say Rednour stabbed his mother with an 8-inch-long blade and inflicted a 2-inch wound to her stomach. He then called 911 and reported that he’d done it “accidentally.”

The records also indicate there were questions about Rednour’s mental condition at the time of the incident.

His mother reportedly told responding deputies that her son “had an episode” and didn’t recognize her during most of the attack.

Responding Park County Sheriff’s Deputy Tom Caudle wrote in an affidavit that he “was familiar with Rednour” and had “experienced his violent tendencies” in the past.

As he was being taken into custody, Rednour reportedly admitted to using marijuana, made a series of bizarre comments, appeared “giddy” and seemed to be hallucinating, the affidavit says. At one point, Rednour reportedly told Caudle that his mother had aggravated him by “hiding in the cushions of the couch” and had “brought in little people to annoy him.” Then, while waiting to be checked out by medical personnel, Rednour described seeing and hearing things that weren’t there, Caudle wrote.

A couple months after his arrest, Rednour’s court-appointed defense attorney requested an evaluation to determine if his client was mentally fit to be tried on the pending criminal charges. A psychologist with the Wyoming State Hospital found he was not, concluding in December 2024 that Rednour “lacks the capacity to conduct his defense in a rational manner or to cooperate with legal counsel in a meaningful way and is unable to demonstrate adequate functioning to proceed.”

He was committed to the state hospital in March 2025 for psychological and psychiatric treatment, but was deemed competent to proceed the following month and returned to the Park County Detention Center.

In August, Rednour pleaded not guilty to his pending charges by reason of mental illness or deficiency, asserting that he lacked the capacity to appreciate the wrongfulness of his conduct or to conform with the law at the time of the stabbing. However, following another evaluation, he agreed to a plea deal in mid-January.

The arrangement with the Park County Prosecuting Attorney’s Office called for Rednour to plead no contest to the aggravated assault and battery charge and accept the prison time in exchange for misdemeanor counts of domestic battery and possession of a controlled substance being dismissed. (Charging documents say deputies found numerous packages of marijuana products and paraphernalia at his residence east of Cody — along with numerous blood stains and the foot-long knife used in the attack.)

Park District Court Judge Bill Simpson accepted the plea agreement at a Jan. 14 sentencing hearing.

On Friday, Rednour was transferred out of the Park County Detention Center to be brought to a state correctional facility. The more than 15 months he’s already served in custody will count toward his 48- to 72-month sentence.