A Broadwater County sheriff’s deputy was shot and killed outside of Three Forks early Tuesday, sparking a more than 100-mile pursuit that ended with a shootout and a father-son duo in custody.

Deputy Mason Moore, 42, was killed following a pursuit on U.S. Highway 287. He was a three-year veteran of the department. He had a wife and three children.

Lloyd Montier Barrus, 61, is in the Missoula County jail and scheduled to appear in court on Wednesday on suspicion of deliberate homicide. His last known address was in Bakersfield, California.

His son, Marshall Barrus, 39, of Gallatin County, was taken to a Missoula hospital after being shot by officers. As of Tuesday, he was still hospitalized. Officials did not comment on his condition.

Marshall and Lloyd Barrus

Marshall Barrus (left) and his father Lloyd Barrus are seen in photos distributed by the Gallatin County Sheriff's Office.

“This is a tremendously sad day for all of us here in Broadwater County,” said Broadwater County Sheriff Wynn Meehan in a written statement. “It’s difficult to adequately describe how devastating it feels to lose one of our own in the line of duty. Our deputy died protecting the citizens of our county and displayed remarkable courage until the very end. His actions will never be forgotten.”

Timeline of events

Gallatin County Sheriff Brian Gootkin said the incident started when Moore was pursuing a vehicle southbound on U.S. Highway 287 shortly before 3 a.m. Tuesday.

Deputy Killed, Three Forks

Law enforcement investigate the location where a deputy's body was found early Tuesday morning, May 16 near Three Forks.

During the pursuit, dispatchers lost contact with Moore. When law enforcement officers from the Gallatin County Sheriff’s Office and the Montana Highway Patrol responded, they found Moore dead at his patrol vehicle a couple miles south of the Town Pump off of U.S. 287.

Using dashboard camera video from Moore’s patrol vehicle, investigators identified the suspect vehicle, an SUV with California plates. An alert to locate the vehicle was issued to law enforcement statewide.

Butte-Silver Bow Sheriff Ed Lester said the SUV was later found driving west on I-90 near Butte. Butte-Silver Bow officers began chasing the suspects. Officers from multiple other agencies joined the pursuit as it traveled west through numerous counties, eventually making its way to Missoula County.

During the chase, Lester said the suspects shot at law enforcement out the rear window of the SUV with at least one semi-automatic rifle. Lester said three Butte-Silver Bow vehicles were damaged by gunfire, as were vehicles from other agencies.

The SUV’s tires were flattened by spike strips at mile marker 162 in Powell County, but the Barrus boys continued west, eventually stopping just east of Rock Creek, about 35 miles east of Missoula, according to the Missoula County Sheriff’s Office.

The passenger, Marshall Barrus, got out and shot at officers, the Missoula County Sheriff’s Office said. He was shot in the head, Lester said, and taken to a hospital. The driver, the elder Barrus, was taken into custody without further incident.

The Montana Department of Justice’s Division of Criminal Investigation is leading the investigation, evaluating four separate crime scenes, according to the Montana Attorney General’s Office.

Investigation near Missoula

Law enforcement officers convene on Interstate 90 near Missoula after an overnight shootout and pursuit ended near the city.

The investigation also includes myriad other law enforcement agencies, including sheriff’s offices from Broadwater, Gallatin, Butte-Silver Bow, Missoula, and Granite counties, along with the Montana Highway Patrol and the Anaconda Police Department.

The Broadwater County Attorney is consulting with the Missoula County Attorney, and charges will be filed at a later time, according to a statement from Gootkin.

A procession of dozens of law enforcement vehicles accompanied Moore’s body from Three Forks to Billings for an autopsy on Tuesday afternoon.

The shooting happened less than two miles from where Highway Patrol Trooper David DeLaittre was shot and killed in December 2010.

Criminal history

Marshall Barrus has criminal history in both Alaska and Montana, including a conviction for felony criminal mischief and a pending felony burglary charge, both in Gallatin County.

According to records, Marshall also has two DUI convictions in Montana in 2009 and 2011, as well as a DUI conviction in Alaska.

Marshall was arrested by Belgrade police in November after a couple reported he had broken into their home, assaulted the wife and threatened to kill the husband over a landlord dispute.

Marshall was charged with felony burglary and misdemeanor disorderly conduct. He pleaded not guilty to the charges in January and is scheduled to go to trial in July.

According to charging documents:

On Nov. 23 at about 9 p.m., Belgrade officers responded to a trespass in process at a 10th Street residence.

A woman reported that someone had banged on her door. When she opened it a little to see who it was, she said Marshall pushed his way into the home, pushing her in the stomach.

Marshall began yelling at the woman’s husband, threatening to kill the man, she said. Another man who was in the home at the time called police and Marshall fled.

The woman said she had been in a dispute with their landlord, and that Marshall was friends with the landlord’s daughter.

Marshall was later found hiding at a friend’s house. He appeared to be intoxicated and was taken to the Belgrade Police Department for questioning. He refused to be interviewed.

At the time of his November arrest, court records say he had been living back in Gallatin County for only a month.

In 2010, Barrus pleaded guilty in Gallatin County of felony criminal mischief and received a three-year deferred sentence.

The charge stemmed from a March 2009 incident where Marshall reportedly kicked in a door at a Bozeman apartment.

According to charging documents, Marshall was arrested after he reportedly kicked in the front door and broke a window and a grandfather clock at a Mason Street home.

Marshall was heavily intoxicated and made several incoherent statements to an officer about running from people with guns who were trying to kill him. He said he went into the home to try to find help. An officer noted that there were no tracks in the snow that indicated anyone else was involved in the incident.

In sentencing Marshall, Gallatin County District Court Judge John Brown noted that in addition to being drunk at the time, Marhsall had also inhaled some methamphetamine prior to the incident.

“Mr. Barrus, you need to understand that this really could have been a serious situation if the owners had been home, this being Montana, because you could have been shot,” Brown said.

Gallatin County Justice Court records show Barrus also has misdemeanor citations for a second DUI, driving while suspended, no liability insurance and others.

Whitney Bermes can be reached at wbermes@dailychronicle.com or 582-2648. Follow her on Twitter at @wabermes.

Whitney Bermes covers cops and courts for the Chronicle.

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