A judge set bond at $1.5 million after police outlined the shooting, flight and weapon search.
BOZEMAN, Mont. — Court records in a fatal downtown Bozeman shooting say police used surveillance footage, witness descriptions and a firearm detection dog to build a homicide case against 22-year-old Jakob Steven Lundberg.
Lundberg is jailed on allegations of deliberate homicide, criminal endangerment and tampering with evidence in the death of 29-year-old Sidney Callaghan. The records describe a case that began as a bar fight, shifted to a busy sidewalk and then moved into a search for a suspect, a car and a discarded weapon.
The first court step came after Lundberg was arrested and brought before Gallatin County Justice of the Peace Rick West. The court was told that Lundberg had been arrested in connection with the May 25 shooting outside Rocking R Bar. Bond was set at $1.5 million. Prosecutors also said the investigation was still in its early stage and that formal charges were likely to be filed after more review. Gallatin County Attorney Audrey Cromwell described the shooting as a major blow to Bozeman. “Violence of this magnitude in the heart of our community is devastating,” Cromwell said.
The affidavit described what police say happened before the gunfire. Investigators say Lundberg and Callaghan were involved in a physical fight inside Rocking R Bar in downtown Bozeman. Staff intervened and moved both men outside. The confrontation continued after they were escorted out, police said. Lundberg then went to a red Subaru WRX, retrieved a handgun and came back toward Callaghan. Bozeman Police Detective Kyle Hodges wrote that Lundberg pushed out his hands in an “isosceles” shooting stance and aimed the handgun at Callaghan. Hodges said Lundberg lowered the weapon, moved closer, raised it again and fired.
The shooting was reported at 12:44 a.m. in the 200 block of East Main Street. Officers arrived and found Callaghan wounded outside the bar. Anthony Hutchings, a detective captain with the Bozeman Police Department, said officers began life-saving efforts at the scene. Callaghan was transported to Bozeman Health Deaconess Hospital and pronounced dead. Police say Lundberg left before officers arrived, driving away in the Subaru. Witnesses provided a description of the vehicle, which helped officers locate him near a Walmart on North Seventh Avenue. Police said there was no ongoing public threat after the arrest.
Charging documents also describe statements police say were made after the shooting. Investigators say Lundberg contacted his father and said, “I shot somebody.” After his arrest, police say Lundberg did not give a full account of what happened. The affidavit says he mostly remained quiet when questioned but made spontaneous statements about regretting what he had done. Authorities have not publicly released a transcript of any police interview, body camera footage or full recording of the reported conversation with his father. The public record also does not yet explain what started the fight inside the bar.
The tampering allegation is tied to the gun. Investigators say Lundberg told law enforcement he disposed of the weapon near a white van. Police were concerned because the firearm was believed to be out in the open as Memorial Day events were approaching. A police dog named Copper, trained to detect firearms and explosives, was brought in to search. Police later said Copper helped locate what they believe was the weapon used in the shooting. The firearm was found the next day. Authorities have not publicly released details on testing of the gun, including ballistics, fingerprints or DNA.
The criminal endangerment allegation is tied to the crowd. Investigators say surveillance footage showed the shooting occurred near many other people. Those nearby included pedestrians, patrons at adjacent businesses and people inside or around the bar. Police have not publicly said exactly how many people were close to the shots, but the affidavit frames the location as a busy downtown area. That detail may matter because the criminal endangerment count focuses not only on Callaghan’s death but also on the risk the gunfire allegedly created for others in the area.
The deliberate homicide allegation centers on the sequence police say appears on video: the fight inside the bar, the removal of the men by staff, the continued confrontation, the walk to the vehicle, the return with a gun and the shots. Prosecutors have not yet laid out their full theory in open court, and Lundberg has not been convicted. The early filings also leave some questions unanswered. They do not state whether Lundberg and Callaghan knew each other, whether either man made threats before the shooting or whether any other person touched the gun before officers recovered it.
The case has also drawn local attention because of where it happened. The Rocking R Bar sits in downtown Bozeman, where late-night crowds often move between bars, restaurants and sidewalks. Hutchings said the shooting was unusual for the city. “I will say this is abnormal for what we have in Bozeman,” he said. He added that downtown is an area police focus on closely. Some people who work nearby told local reporters they still felt comfortable downtown, though they described the shooting as frightening. Bar staff declined to comment in one local report after the shooting.
Callaghan’s death is being investigated through several types of evidence. Police are reviewing video from the area, statements from witnesses, court records, the reported post-shooting call, the recovery of the vehicle and the suspected weapon. The defense side of the case had not been fully presented in the public record after the first court appearance. Prosecutors said more filings were expected as the review continued. The next phase will likely determine how the allegations are formally written and whether any additional hearings are scheduled to address bond, evidence or probable cause.
Currently, Lundberg is being held at the Gallatin County Detention Facility. His next listed court appearance was scheduled for June 12, with prosecutors continuing to review the shooting, the weapon recovery and statements gathered after the arrest.
Author note: Last updated June 23, 2026.