The suspect was arrested near Walmart after leaving downtown in a red Subaru, police say.
BOZEMAN, Mont. — A Memorial Day weekend shooting outside Rocking R Bar killed Sidney Callaghan and led police across Bozeman as they searched for a suspect, a red Subaru and a missing handgun.
The investigation began in the 200 block of East Main Street, where officers were sent at 12:44 a.m. May 25 for a report that someone had been shot. It soon became a homicide case against Jakob Steven Lundberg, 22, who is accused of killing Callaghan, 29, after a fight that started inside the bar.
The first known call to police reported gunfire outside a downtown bar and a shooter leaving in a vehicle. Officers arrived on Main Street and found Callaghan critically wounded. Police said they began life-saving measures while other officers worked to locate the person who had fled. Callaghan was taken to Bozeman Health Deaconess Hospital, where he was pronounced dead. The early police release did not immediately name the suspect or victim, but later court and jail records identified Lundberg as the man arrested and Callaghan as the man who died.
The second part of the timeline came from witnesses and surveillance footage. Investigators say Lundberg and Callaghan had been fighting inside Rocking R Bar before staff escorted them out. Once outside, police say, the fight continued. The affidavit says Lundberg then went to his red Subaru WRX, retrieved a firearm and returned to the sidewalk. Bozeman Police Detective Kyle Hodges wrote that Lundberg pushed both hands forward in an “isosceles” shooting stance, aimed at Callaghan, lowered the gun, moved closer, raised it again and shot him. Police say Callaghan fell after being hit multiple times.
The third phase took officers away from the bar. Witnesses gave police a description of Lundberg’s vehicle, and officers later found him near a Walmart on North Seventh Avenue. Police say Lundberg had left the shooting scene in the Subaru shortly before 1 a.m. Charging documents say he also contacted his father and said, “I shot somebody.” Investigators say Lundberg did not provide a full explanation when questioned, though the affidavit says he made spontaneous statements about regretting what he had done. Police have not publicly released all witness statements or the full video reviewed in the case.
The fourth part of the case centered on the missing gun. Police say Lundberg told officers that he had discarded the firearm near a white van. Because the shooting happened as Memorial Day events were approaching, officers were concerned about a gun left where the public might find it. The department used Copper, a police dog trained to detect firearms and explosives, in the search. Police later said Copper helped locate what investigators believe was the weapon used in the shooting. The gun was found the next day. Investigators have not publicly released a full forensic report tying the weapon to the shots.
Lundberg appeared before Gallatin County Justice of the Peace Rick West after his arrest. The court was advised that he had been arrested on allegations of deliberate homicide, criminal endangerment and tampering with evidence. His bond was set at $1.5 million. Prosecutors said the case was still in its early stage and that formal charges would likely be filed after a full review of the evidence. Gallatin County Attorney Audrey Cromwell said the shooting had deeply affected the city. “Our office will continue working closely with law enforcement to ensure a thorough review of the evidence and to seek justice for Sidney,” Cromwell said.
Police have described the shooting scene as crowded. Investigators say surveillance footage showed pedestrians, bar patrons and people at nearby businesses in the area when the shots were fired. That fact is important to the criminal endangerment allegation because police say the gunfire risked harm to people other than Callaghan. No other wounded person has been publicly identified. Authorities have not said how many shots were fired, how far bystanders were from the shooting or whether officers recovered shell casings from the sidewalk.
Downtown Bozeman became part of the story because the shooting happened in one of the city’s most active late-night areas. The Rocking R Bar sits near other businesses that draw foot traffic, especially during weekends and holidays. Anthony Hutchings, a detective captain with the Bozeman Police Department, said the case was not typical for the city. “I will say this is abnormal for what we have in Bozeman,” Hutchings said. He said downtown is an area police focus on heavily, though sudden violence can still occur. Nearby workers who spoke to local reporters described a mix of fear, sadness and continued attachment to the area.
The public record gives a clear outline but not a full picture of the fight. Police have not said what the argument was about, whether Callaghan and Lundberg knew each other or whether any warning was given before the shots. They also have not said whether anyone else joined the fight inside or outside the bar. Those questions may be addressed later through witness testimony, surveillance video, forensic reports or additional court filings. For now, the official timeline is built around a fight, an escort outside, a trip to the Subaru, the shooting, the flight, the arrest and the weapon recovery.
Lundberg has not been convicted, and the allegations will move through Gallatin County courts. Prosecutors must decide how to present the homicide, endangerment and tampering counts as the case advances. The defense had not laid out a full response in the early public record. The next steps are expected to focus on formal filings, court scheduling and continued review of the evidence collected from Main Street, the vehicle stop and the location where the gun was found.
Lundberg remains in the Gallatin County Detention Facility. His next listed court appearance was scheduled for June 12, while investigators continued to review evidence from the downtown shooting.
Author note: Last updated June 23, 2026.