BOULDER, Colo. — A former Boulder County deputy was taken into custody early Monday morning after he allegedly made threats toward sheriff’s office facilities and fired gunshots on law enforcement properties.
Tyler Boyd Reilly faces several charges, including felony assault with a deadly weapon.
The sheriff’s office says its dispatch center received a call around 12:02 a.m. from Reilly, who reported having anxiety. He then called back at 12:08 a.m. and his call was being transferred to the Westminster Police Department, the jurisdiction he was calling from. As his call was being transferred, officials say Reilly made threats toward Boulder County Sheriff’s Office facilities, including the department’s headquarters and the county jail.
Watch in the video below: Boulder County officials provide update following arrest of former deputy
Reilly, 40, is a former deputy with the Boulder County Sheriff’s Office who worked in the jail and patrol divisions.
"He resigned on May 25, 2024 in lieu of termination for cause," the sheriff’s office said in a press release.
At news conference later in the day, Boulder County Sheriff Curtis Johnson said Reilly began working with the Boulder County Sheriff's Office in 2012 at the Boulder County Jail before moving over to the operations division to become a patrol deputy before resigning.
Johnson did not provide additional details about his resignation, only saying had Reilly not resigned, he would have terminated his employment with the sheriff's office.
"To be disqualified [from working in law enforcement], there have to be disqualifying offenses that POST recognizes to take away their certification, and so you can read between the lines," Johnson added.
The sheriff’s office worked to find Reilly and a database found that his vehicle was driving northbound on State Highway 287 from Dillon Road at around 12:37 a.m.
Deputies staged outside the sheriff’s office headquarters, the jail and communication campuses, where staff was inside, due to the threats to prepare for Reilly to possible arrive.
At around 1:08 a.m., a sheriff’s office sergeant saw Reilly armed with an AR-15-style rifle at the front door of the headquarters. He fired multiple rounds at the building’s entrance area and was eventually confronted by deputies, who took him into custody outside the entryway without incident, according to Boulder County Sheriff's Office spokesman Vinnie Montez.
"No shots were fired from either Boulder County Sheriff's Office personnel or Broomfield law enforcement during either of the two incidents," Montez said.
Investigators later learned that the former deputy went to the Broomfield Police Department and fired rounds at multiple patrol vehicles.
No one was hurt in either shooting. Officials say there is no ongoing threat to the public.
"It's certainly frightening — disheartening, that someone would, especially a former employee, use that level of violence towards the organization that formerly employed him," Johnson told reporters during the news conference. "It's certainly concerning to me, but I'm not aware of any prior or similar acts involving the Broomfield Police Department or the Boulder County Sheriff's Office."
Johnson added he appreciated the work deputies did earlier today to make sure no one was injured in this incident.
"Making sure that our people are safe is a priority, and they shouldn't have to come to work, whether they're a 911 dispatcher or a jail deputy or a patrol deputy, believing that someone they used to work with was out to harm them," Johnson said.
The sheriff’s office lobby will be closed Monday. Anyone needing to contact the department’s civil section was asked to call 303-441-3608 or email sheriffcivil@boundercounty.gov. Those with records-related needs can call 303-441-3600.
Anyone with information about this incident that could help the Boulder County Sheriff's Office is asked to email tips at bcsotips@bouldercounty.gov.
As of Monday afternoon, Reilly’s full list of charges include the following:
Boulder County Sheriff's Office incident charges:
- Attempted First‑Degree Burglary (F4)
- Felony Menacing with a Deadly Weapon (F5)
- Attempted First‑Degree Criminal Trespass (F6)
- Criminal Mischief, Damage Between $2,000 and $5,000 (F6)
- Prohibited Use of Weapons (M1)
- Resisting a Peace Officer (M2)
- Reckless Endangerment (M2)
- Obstructing Governmental Operations (M2)
Broomfield Police Department incident charges:
- Criminal Mischief, Damage Between $100,000 and $1,000,000 (F3)
- Prohibited Use of Weapons (M1)
- Reckless Endangerment (M2)
- Obstructing Governmental Operations (M2)
- Second‑Degree Criminal Trespass (Petty Offense)
Charge stemming from incident at the Boulder County Jail, after he was taken into custody:
- 2nd Degree Assault on a Peace Officer Causing Bodily Injury (F4)
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