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Officials investigate the scene of a crash following a pursuit in which police fired at a carjacking suspect in Boulder on Thursday, May 12, 2022. (Mitchell Byars/ Staff Writer)
Officials investigate the scene of a crash following a pursuit in which police fired at a carjacking suspect in Boulder on Thursday, May 12, 2022. (Mitchell Byars/ Staff Writer)
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Trenton Dunham (Boulder County Sheriff's Office)
Trenton Dunham (Boulder County Sheriff’s Office)

Two deputies with the Boulder County Sheriff’s Office and one officer from the University of Colorado Boulder fired their weapons at a suspect who displayed a gun during a chase in Boulder.

Trenton Joshua Dunham, 25, was arrested Thursday on suspicion of 16 counts including attempted murder and assault after an alleged multijurisdictional crime spree that culminated with personnel from the Boulder Police Department, CU Boulder Police Department and Boulder County Sheriff’s Office pursuing Dunham in a stolen truck to the Table Mesa on-ramp of U.S. 36.

According to an affidavit, Dunham while driving pointed a gun at officers, leading to two deputies with the sheriff’s office and an officer from CU Boulder police to fire into the vehicle. Dunham was not hit, and police then used vehicle maneuvers to stop Dunham’s vehicle.

A multijurisdictional shoot team was activated to investigate the incident. The Boulder County Sheriff’s Office said the two deputies were placed on non-enforcement duties, while the CU Boulder officer was placed on paid administrative leave per department policy.

The shoot team will present evidence to the Boulder County District Attorney’s Office, which will determine whether the actions by the officers were justified or warrant charges.

According to the affidavit, the spree began when Dunham reportedly shot at his father’s house in Greeley and then stole his car. He then crashed that car and stole a truck at gunpoint Thursday morning in Broomfield.

Shortly after that, Dunham was seen driving the stolen truck on the Pearl Street pedestrian mall, striking property near 15th and Pearl streets. The description of the truck, which was a work vehicle with a company logo on the side, allowed Broomfield police to connect the cases.

The vehicle was spotted again just before 7 a.m. Officers who saw it coordinated stop sticks to disable the vehicle. Though the sticks deflated the tires, the vehicle continued driving on its rims, the release said.

The driver then continued down Table Mesa Drive toward the eastbound U.S. 36 entrance ramp and then onto the sidewalk headed toward the RTD bus stop where people ran from the vehicle’s path.

In an interview with police after the crash, Dunham admitted to shooting at his father’s home, the Broomfield carjacking and pointing a gun at officers while driving in Boulder.

According to the affidavit, Dunham was on the phone with his mother at the time, and she was the one who told him not to shoot the gun.

Dunham is facing two counts of attempted first-degree murder, two counts of aggravated motor vehicle theft, illegally discharging a firearm, three counts of felony menacing, second-degree assault with a deadly weapon, aggravated robbery, first-degree assault, vehicular eluding, possession of a weapon by a previous offender and two misdemeanors.

Anyone who witnessed any part of these incidents or has any information about any of these crimes is asked to call Boulder police Detective Sarah Cantu at 303-441-4328 reference case No. 22-4441.

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