Police Magazine Logo
MenuMENU
SearchSEARCH

Denver Officer Shot, Killed at Jazz Concert

Officer Celena Hollis succumbed to wounds from the shooting, which occurred shortly after 8 p.m. Sunday at the City Park Jazz concert. Police believe Rollen Oliver, 21, shot Officer Hollis in the head.

June 25, 2012
Denver Officer Shot, Killed at Jazz Concert

Denver Police Officer Celena Hollis. Photo: Denver PD

1 min to read


A 21-year-old man fatally shot a Denver Police Department officer while she attempted to break up a fight at a Sunday jazz concert.

Officer Celena Hollis succumbed to wounds from the shooting, which occurred shortly after 8 p.m. Sunday at the City Park Jazz concert. Police believe Rollen Oliver, 21, shot Officer Hollis in the head.

Ad Loading...

The officer was attempting to break up a fight, after the concert. Police believe the fight was caused by tensions between rival gang members, reports the Denver Post.

Officer Hollis transferred to the Denver P.D. on Oct. 3, 2005, after serving with the Detroit Police Department as a patrol officer and member of the Street Crime Attack Team (SCAT). She used her Critical Incident Training skills to de-escalate several hostile and potentially violent incidents, including successfully assisting an Iraqi war veteran who suffered from PTSD. Officer Hollis has been recognized numerous times for her service to the community.

Officer Hollis served as the president of the Denver P.D.'s Black Police Officers Organization. She is survived by her 12-year-old daughter.

"She was an amazing person with an engaging smile who was well liked and respected by her colleagues and the community she served," according to a department statement. "She will be missed."

More Patrol

Clooudy sky background with a lot of blue, logo for DroneSense, and dates and location of an upcoming event.
PatrolFebruary 11, 2026

Versaterm Launches Innovation Summit for Public Safety Drone Operations

The two-day DroneSense Innovation Summit by Versaterm will bring together public safety and industry experts to define best practices for scaling drone operations.

Read More →
Thumnail for video series POLICE Topics, Tactics & Tips featuring a black background with police car lights and headline What Makes a Good LE Boot?
Patrolby Wayne ParhamFebruary 11, 2026

What Makes a Good LE Boot?

Learn what makes a boot good for police officers as POLICE visits with Kyle Ferdyn, of Garmont Tactical, who explains the features of boots and why each is needed in an LE boot.

Read More →
Red fabric background with blue and white Folds of Honor logo.
PatrolFebruary 4, 2026

Folds of Honor Opens Scholarship Application for Children and Spouses of Fallen or Disabled Service Members and First Responders

The application period for the Folds of Honor scholarship program is now open through the end of March. Scholarships support students from early education through postsecondary studies, easing the financial burden for families who have given so much in service to others.

Read More →
Ad Loading...
Closeup of hands reaching to pick up a ballistic helmet and a Team Wendy logo in a white box top center in the image.
PatrolFebruary 4, 2026

Team Wendy Now on GovX: Faster Verification and Discount Access for Eligible Professionals

With GovX verification now integrated directly into the Team Wendy checkout experience, eligible customers can confirm their status in just a few clicks and have the discount applied automatically.

Read More →
backgroudn image of desert with inset 5.11 logo and images of pant and boot.
PatrolJanuary 28, 2026

5.11 Debuts 2026 Footwear & Apparel at SHOT Show

5.11 showcased new apparel and footwear products during SHOT Show 2026, including new color options for the A/T Boa Lite Mid Boot and the Founder’s Jacket.

Read More →
Three tactical backpacks set against a desert background with an inset logo for 5.11.
PatrolJanuary 21, 2026

5.11 Debuts New Load-Bearing Gear at SHOT Show

5.11 launched a variety of new load-bearing gear, ranging from backpacks to chest packs, designed for training, travel, and everyday readiness, this week during SHOT Show 2026.

Read More →
Ad Loading...
Blue background with Streamlight logo at top and inset images of one handgun light, two rifle lights, and one handheld light.
PatrolJanuary 21, 2026

Streamlight Launches the Rechargeable TLR-3X & Other Lights at SHOT Show

Streamlight launched the TLR-3X and TLR-3X USB, two new weapon lights, and an assortment of other new lights during SHOT Show 2026.

Read More →
dark ballistic sunglasses against a blue smokey background
PatrolJanuary 21, 2026

EOTech & Fast Metal Introduce the EOTech Halen Ballistic Spectacle System

Built on the proven Halen platform, the new EOTech x Fast Metal Halen Ballistic Spectacle System is the only aluminum frame listed on the U.S. Army’s Authorized Protective Eyewear List.

Read More →
Black background, outline of Florida, headline 2 Officers Shot
Patrolby Wayne ParhamJanuary 14, 2026

2 Florida Officers Shot After Shots-Fired Call

Two officers were shot in Gainesville, Florida, by a man who police say was leaving an area where he had killed a man inside a business. The suspect exited his vehicle in what the chief termed an “ambush-style” attack.

Read More →
Ad Loading...
Blue-tinted background photo of hand hanging up an office phone and headline Richmond Heights PD: Harassment and Threats Will Be Addressed Accordingly
PatrolJanuary 14, 2026

Mistaken Identity: Ohio Police Department Harassed After ICE OIS

An Ohio police department has received harassing phone calls and social media messages because it has an officer with the same name as the ICE officer identified in the Minneapolis, Minnesota, officer-involved shooting.

Read More →