Montana Man Sentenced to 100 Years for Brutal Ax Murder Initially Mistaken for Bear Attack
A Montana judge has handed down a 100-year prison sentence to Daren Christopher Abbey for a campground homicide so violent that early responders initially believed the victim had been mauled by a grizzly bear. The sentencing concludes a case that shocked the Big Sky community, transitioning from a feared wildlife incident to a manhunt for a human killer.
Abbey, 42, was found guilty in November 2025 of deliberate homicide in the death of 35-year-old Dustin Kjersem. The incident occurred in October 2024 along a remote forest service road. Kjersem was found dead in his tent with extensive injuries to his skull and body. The carnage at the scene led the person who discovered the body to tell 911 operators that Kjersem had likely suffered a bear attack. However, a subsequent investigation by Montana Fish, Wildlife & Parks found no evidence of bear activity, leading investigators to rule it a homicide.
Forensic analysis played a pivotal role in identifying Abbey. Deep search into the investigation reveals that detectives recovered DNA from a beer can left at the campsite, which matched Abbey. Following his arrest, Abbey confessed to the killing, admitting he struck the victim with a piece of wood, stabbed him with a screwdriver, and ultimately hacked him with a camp ax. He later removed items from the scene, including the weapon and a cooler, in an attempt to hide evidence.
Background information provided during the trial painted a tragic picture of a chance encounter gone wrong. Kjersem had arrived early to set up camp for a weekend with a friend. When Abbey approached the site, Kjersem reportedly welcomed him and offered him a beer. The prosecution emphasized that Kjersem was being hospitable when Abbey turned violent, motivated by a dispute over the campsite location.
Despite the confession, the defense raised objections regarding the narrative of a cold-blooded execution. Abbey’s legal counsel argued that the altercation was not premeditated, suggesting the incident escalated rapidly due to intoxication and a perceived slight. Abbey claimed during interrogation that the victim had pushed him, sparking a “fight or flight” response.
However, the court dismissed these objections as insufficient to excuse the brutality of the crime. The prosecution highlighted the excessive nature of the violence and the calculated steps Abbey took to evade capture, including washing the ax and returning to his job in the days following the murder. The 100-year sentence ensures Abbey will likely spend the remainder of his life in the Montana State Prison system.
