Husband and wife dead in apparent murder-suicide near Idaho-Wyoming border

WAYAN, Idaho (KIFI) — A domestic dispute ended in tragedy Wednesday morning near the Idaho-Wyoming border, leaving a husband and wife dead following a tense standoff with law enforcement. According to the Bonneville County Sheriff’s Office, 43-year-old Christopher Moon shot and killed his wife, 23-year-old Cassandra Moon, before turning the gun on himself.

Cassandra Moon Remembered

In the wake of the tragic apparent murder-suicide, the neighboring community of Afton, Wyoming, has rallied to support the surviving members of Cassandra's family.

A GoFundMe campaign, organized by family friend Addie Garn, describes Cassandra—known affectionately as "Cassie" to those close to her—as a devoted mother whose life centered around her three young children: two boys and an infant daughter, Claire.

While the initial chatter and rumormill within the community suggested the infant may have also been a victim of the incident, official releases from law enforcement state that only the husband and wife were killed. The Sheriff's Office has not provided further details or comment whether or not any children were present at the scene.

Garn says Cassie’s death has left "a profound void in the lives of everyone who knew and loved her." The funds raised will go toward funeral and memorial expenses for Cassie, as well as immediate and ongoing support for her children.

"No amount can ease the pain of this tragedy," Garn shared on the fundraising page, "but your generosity can help relieve some of the financial burden and provide support to the children Cassie loved so deeply."

The response has been immediate. As of 4 PM on January 21, the campaign has already raised over $8,000. For more information, click HERE.

Incident Background

The incident began just after 8:00 a.m. when Christopher Moon called 911, reportedly confessing to dispatchers that he had shot his wife and intended to take his own life. Multiple law enforcement agencies, including the Bonneville County SWAT team, raced to the scene on Jackknife Road.

Upon arrival, BCSO deputies found Moon inside one of two vehicles parked on the side of the road. According to Sgt. Bryan Lovell, negotiators were able to briefly talk with Moon over the phone, in an attempt to de-escalate the situation. Despite their efforts to persuade him to surrender peacefully, deputies witnessed Moon turn the firearm on himself moments later.

As they approached the vehicles, the deputies reportedly discovered the body of Cassandra Moon. Both individuals were pronounced dead at the scene from apparent gunshot wounds.

Sgt. Lovell confirmed that no other parties were involved or injured. The BCSO continues to process evidence from the scene, and says no further details will be released at this time.

UPDATED: 12:00 PM, Jan 21, 2026

WAYAN, Idaho (KIFI) — Multiple people are dead following a domestic disturbance at a remote property along the Idaho-Wyoming border that drew a large-scale police response on Wednesday morning.

"Once we got to the scene, we found that it was relatively contained to an area just off the road around a couple of vehicles," said BCSO Sgt. Bryan Lovell. "We did discover deceased persons. And so right now we're, we're working on gathering evidence and investigating that scene."

The incident began shortly after 8:00 a.m. when the BCSO SWAT team was activated to respond to the report of a disturbance possibly involving weapons at a home on Jackknife Road near Etna, Wyoming.

While officials have confirmed bodies were discovered at the scene, the identities of the deceased and any potential suspects have not yet been released. Sgt. Lovell noted that the scene is now safe and there is no further danger to the community.

Jackknife Road has been closed from State Line Road at the Wyoming border to the west as detectives process the scene. Law enforcement officials have not provided a timeline for when the road will reopen.

This is a developing story. Local News 8 has a reporter on the scene and will provide more details throughout the day.