1 Student Dead, 8 Injured in Shooting at Colorado STEM School Highlands Ranch

1 Student Dead, 8 Injured in Shooting at Colorado STEM School Highlands Ranch

One student is dead and eight others were injured after a shooting Tuesday at the STEM School Highlands Ranch in Highlands Ranch, Colo., the Douglas County Sheriff’s Office said. Two suspects are in custody.

One student is dead and eight others were injured after a shooting at the STEM School Highlands Ranch in Highlands Ranch, Colo., the Douglas County Sheriff’s Office said. Two suspects are in custody.

According to Douglas County Sheriff Tony Spurlock, two shooters walked into the campus’s high school at about 1:50 p.m. Tuesday and opened fire in “two separate locations.”

Spurlock said that administrators called the dispatch center as soon as gunfire was heard in the school, and the campus was placed on lockdown.

Deputies arrived two minutes later and found the two suspects, continuing to shoot, one of whom was armed with a handgun. The suspects were taken into custody separately.

Spurlock said no gunfire was exchanged between deputies and the suspects, and no law enforcement members were injured.

"I have to believe that the quick response of the officers that got inside that school helped save lives," he said.

Agents from the Department of Homeland Security, FBI and ATF also responded to the incident to help with the investigation.

The sheriff’s office initially said both suspects were male, but said Wednesday morning that the second suspect is a female. Spurlock said the suspects were believed to be students at the school.

According to Spurlock, the STEM School Highlands Ranch does not have a dedicated school resource officer, instead contracting out its security staff.

Class will be canceled at the campus through the end of the week. All other schools in Douglas County will remain open, with heightened security.

"This is a terrible event," Spurlock said. "This is something that no one wants to have happen in their community ... and we will get to the bottom of it to figure out how and what has occurred."

About the Author

Jessica Davis is the Associate Content Editor for 1105 Media.

Featured

  • The Evolution of IP Camera Intelligence

    As the 30th anniversary of the IP camera approaches in 2026, it is worth reflecting on how far we have come. The first network camera, launched in 1996, delivered one frame every 17 seconds—not impressive by today’s standards, but groundbreaking at the time. It did something that no analog system could: transmit video over a standard IP network. Read Now

  • From Surveillance to Intelligence

    Years ago, it would have been significantly more expensive to run an analytic like that — requiring a custom-built solution with burdensome infrastructure demands — but modern edge devices have made it accessible to everyone. It also saves time, which is a critical factor if a missing child is involved. Video compression technology has played a critical role as well. Over the years, significant advancements have been made in video coding standards — including H.263, MPEG formats, and H.264—alongside compression optimization technologies developed by IP video manufacturers to improve efficiency without sacrificing quality. The open-source AV1 codec developed by the Alliance for Open Media—a consortium including Google, Netflix, Microsoft, Amazon and others — is already the preferred decoder for cloud-based applications, and is quickly becoming the standard for video compression of all types. Read Now

  • Cost: Reactive vs. Proactive Security

    Security breaches often happen despite the availability of tools to prevent them. To combat this problem, the industry is shifting from reactive correction to proactive protection. This article will examine why so many security leaders have realized they must “lead before the breach” – not after. Read Now

  • Achieving Clear Audio

    In today’s ever-changing world of security and risk management, effective communication via an intercom and door entry communication system is a critical communication tool to keep a facility’s staff, visitors and vendors safe. Read Now

  • Beyond Apps: Access Control for Today’s Residents

    The modern resident lives in an app-saturated world. From banking to grocery delivery, fitness tracking to ridesharing, nearly every service demands another download. But when it comes to accessing the place you live, most people do not want to clutter their phone with yet another app, especially if its only purpose is to open a door. Read Now

New Products

  • Connect ONE’s powerful cloud-hosted management platform provides the means to tailor lockdowns and emergency mass notifications throughout a facility – while simultaneously alerting occupants to hazards or next steps, like evacuation.

    Connect ONE®

    Connect ONE’s powerful cloud-hosted management platform provides the means to tailor lockdowns and emergency mass notifications throughout a facility – while simultaneously alerting occupants to hazards or next steps, like evacuation.

  • FEP GameChanger

    FEP GameChanger

    Paige Datacom Solutions Introduces Important and Innovative Cabling Products GameChanger Cable, a proven and patented solution that significantly exceeds the reach of traditional category cable will now have a FEP/FEP construction.

  • Camden CM-221 Series Switches

    Camden CM-221 Series Switches

    Camden Door Controls is pleased to announce that, in response to soaring customer demand, it has expanded its range of ValueWave™ no-touch switches to include a narrow (slimline) version with manual override. This override button is designed to provide additional assurance that the request to exit switch will open a door, even if the no-touch sensor fails to operate. This new slimline switch also features a heavy gauge stainless steel faceplate, a red/green illuminated light ring, and is IP65 rated, making it ideal for indoor or outdoor use as part of an automatic door or access control system. ValueWave™ no-touch switches are designed for easy installation and trouble-free service in high traffic applications. In addition to this narrow version, the CM-221 & CM-222 Series switches are available in a range of other models with single and double gang heavy-gauge stainless steel faceplates and include illuminated light rings.