Hoax Explosive Device Triggers Evacuation at Colorado State Capitol.

Hoax Explosive Device Triggers Evacuation at Colorado State Capitol.

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For a few fleeting moments on a crisp autumn morning, the gold-leaf dome of the Colorado State Capitol did not look like a symbol of democratic order. It looked like a giant bullseye.

At 10:34 a.m. on Wednesday, the morning rhythm of Capitol Hill was shattered by a flash of state patrol uniforms, barking orders, and the high-pitched, insistent blare of building alarms. Outside, along the granite steps where tourists usually snap pictures of the “One Mile Above Sea Level” marker, troopers spotted something that instantly turned routine security into a high-stakes emergency: an object resting on an exterior windowsill near the east entrance.

It was a crafted illusion—a device rigged with exposed wires trailing from its top and bottom, meticulously assembled to resemble an explosive device. 

Within minutes, the sprawling 19th-century neoclassical monument went quiet. The state legislature was out of session, meaning the massive crowds of lawmakers and lobbyists that usually pack the hallways were absent. Yet inside, a skeleton crew of state employees, staffers, archivists, and maintenance workers suddenly found themselves thrust into a real-time crisis response.

The Echo of Empty Corridors

Inside the building, the transition from normal routine to urgent evacuation was abrupt.

“You don’t think about what a building sounds like until everyone is forced out at once,” said one legislative staffer who was filing research papers when the alarm sounded. “First came the sirens, and then this echoing loudspeaker voice echoing off the marble. You grab your keys, you grab your jacket, and you walk—fast—without looking back.”

Outside, Colorado State Patrol (CSP) officers immediately cordoned off the perimeter. Lincoln Street and 14th Avenue—two of Downtown Denver’s main arteries—were snapped shut, cutting off the steady pulse of city traffic. Red and blue lights flashed against the autumn foliage as troopers directed pedestrians away from the perimeter, transforming the normally bustling civic plaza into a silent, barricaded perimeter.

By 11:12 a.m., the building was completely cleared, every floor checked and secured.

Precision Under Pressure

​At 11:14 a.m., two minutes after the complete evacuation, the Denver Police Department Bomb Squad rolled onto the scene with heavy armored equipment.

​Technicians dressed in protective gear deployed specialized diagnostic equipment toward the east entrance. For nearly half an hour, tension hung heavy over the quiet streets of Capitol Hill as specialists meticulously examined the mysterious object sitting on the windowsill.

​In an era of hyper-vigilance, hoax devices are treated with the exact same gravity as live ordnance until proven otherwise. Every wire was inspected; every angle scanned.

​By 11:49 a.m.—just 35 minutes after the bomb squad arrived—the verdict came back: the device was a complete fake, carrying no explosive potential and posing no actual threat to the public.

​The evacuation order was promptly lifted, traffic barriers were pulled back, and the city began to breathe again.

Spotted on Surveillance

​While bomb technicians were busy analyzing the windowsill, investigators were already piecing together how the device got there.

​According to police probable cause statements, state surveillance cameras had captured the entire sequence of events earlier that morning. The footage showed a man approaching the Capitol’s east steps, carefully placing the wire-laden object near the entrance, and walking away into the surrounding neighborhood.

Camera feeds tracked the man as he walked southbound along Grant Street. At approximately 11:20 a.m., just as technicians were working near the building, alert officers spotted a suspect matching the video description.

Troopers intercepted 32-year-old Cody Flynn a short distance from the Capitol grounds and took him into custody without further incident. Flynn was subsequently transferred to the Denver Police Department, where he is being held under investigation for possession of a hoax explosive device while prosecutors review final charges.

Returning to Normal

​By early afternoon, the golden dome of the Capitol was once again surrounded by the familiar sounds of Denver life—buses rumbling down Lincoln Street, office workers crossing the lawn, and visitors climbing the granite steps.

​Though the threat turned out to be a hollow scare, the swift multi-agency response served as a stark reminder of the fragile line between everyday routine and public security in the heart of the state capital.

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