The story sounds like a bad 80s thriller plot. A father and son, living off the grid in the rugged Spanish Peaks of Montana, decide the younger man needs a wife. They don’t go to a dance or try a dating app—mostly because it's 1984 and they live in a tent. Instead, they snatch a world-class athlete right off a trail.
Dan and Don Nichols weren’t the rugged, noble pioneers that some media outlets later tried to make them out to be. Honestly, they were more like dangerous misfits who couldn't cut it in the modern world. When they grabbed Kari Swenson on July 15, 1984, they set off a chain of events that ended in a bloody standoff, a murder, and a manhunt that gripped the entire country.
What Actually Happened at Ulery's Lake
Kari Swenson was 22 and at the top of her game. She was a member of the U.S. Biathlon team, used to pushing her body to the limit. She was out for a training run near the Big Sky resort when Don and Dan stepped out of the brush with guns.
They didn't just want a "mountain bride." They wanted a servant.
Don, the father, was the architect of the whole thing. He’d been taking Dan into the mountains since the kid was five, basically grooming him to distrust society. By 1984, they were living in the Madison Range full-time. They’d chain Kari to a tree or to Dan himself to keep her from bolting.
It didn't last long. The very next morning, two local rescuers, Alan Goldstein and Jim Schwalbe, stumbled onto their camp.
The Moment it Turned Deadly
Confusion is a mild word for what happened next. Kari started screaming to warn the rescuers because she knew the Nichols men were armed and paranoid. Don told Dan to "shut her up."
Dan fired. He later claimed it was an accident, but Kari has been very vocal over the years—especially in recent interviews—that he looked right at her and pulled the trigger. The bullet tore through her chest, collapsing a lung.
Seconds later, Don Nichols raised his rifle and shot Alan Goldstein in the face, killing him instantly.
Jim Schwalbe managed to run for his life. The Nicholses, realizing the game was up, unchained a bleeding Kari and vanished into the timber. They left her there, next to Goldstein's body, for hours before more rescuers found her. She survived because of the incredible lung capacity she’d built as a biathlete.
The Five-Month Manhunt
For the next five months, Dan and Don Nichols became ghosts. They knew the Madison Range better than the back of their hands. They moved through the Beartrap Canyon and the Spanish Peaks, dodging search parties and helicopters.
The media at the time was weirdly obsessed with them. They called them "The Mountain Men." It gave them this sort of folk-hero vibe that they absolutely did not deserve. In reality, they weren't living off the land like 18th-century trappers. Kari Swenson later pointed out that they survived by breaking into cabins, stealing canned goods, and poaching game.
They were eventually caught in December 1984. Madison County Sheriff Johnny France, a guy who actually knew the mountains, tracked them to a camp about 30 miles west of Bozeman. They were cold, hungry, and pretty much done. They surrendered without another shot being fired.
Life After Prison: Where are they now?
The legal fallout was significant, but maybe not as long-lasting as you'd expect for a case involving kidnapping and murder.
- Dan Nichols: He was convicted of kidnapping and assault. He got 20 years but only served about six. After his release in 1991, he actually tried to blend back into society. He got a degree, worked as a counselor for a while, and even got married. But he couldn't stay out of trouble. In 2011, he was busted at a music festival with a bunch of marijuana he was planning to sell. He went back to prison for a few more years and was released again in 2017.
- Don Nichols: The father took the brunt of the sentence. He was handed 85 years for murder, kidnapping, and aggravated assault. He spent over 30 years behind bars, mostly working as a prison gardener. Despite several failed parole attempts where the Swenson family fought tooth and nail to keep him in, he was finally granted parole in 2017 at the age of 86.
Don Nichols died on June 17, 2023. He was 92. His obituary mentioned his love for the "sanity of the natural world," which is a pretty polished way to describe a guy who kidnapped a woman and killed a man because he didn't like taxes or traffic lights.
Why This Case Still Sticks
People still talk about Dan and Don Nichols because it taps into that American obsession with the "rugged individual." But this case is a reminder of the dark side of that myth.
The reality wasn't a pioneer adventure. It was a 22-year-old woman with a "sucking chest wound" lying in the dirt while a father and son ran away. Kari Swenson eventually returned to competition, which is nothing short of a miracle, but she never regained her full lung capacity. She retired from the biathlon in 1986 and became a veterinarian.
If you’re looking to understand the "Mountain Men" better, don't look for heroes. Look for the story of a survivor who outlasted them.
Next Steps for Research:
If you want to see the primary accounts of the case, look for the book Victims: The Kari Swenson Story by her mother, Janet Swenson. It cuts through the "mountain man" mythology and focuses on the actual crime. You can also find archives of the 1985 trial transcripts through the Montana Historical Society if you're interested in the specific legal arguments used by Don Nichols to justify his lifestyle.