A viral 65-second video shows a man punching a seated Frontier passenger at Gate 54, drawing 7.6 million views and no confirmed charges yet.

An 8-day-old boy vanished with his mother and a 35-year-old man; their Subaru was later spotted on I-25 near Lone Tree.

Council members split over a plan requiring Castle Rock businesses to report thefts within 96 hours, with penalties for failing to preserve or provide evidence.

Two fire departments teamed up Wednesday to respond to a brush fire burning near homes in Aurora.

Genaro Rubio Barron turned himself in a day after the crash, but his bond stayed at just $100 until the victim died.

A loose handhold sent her tumbling on a technical Tenmile traverse; her hiking partners walked away unhurt.

Dulce Aguirre Cruz, 17, vanished near 87th Avenue and Galen Court, authorities say.

The car was later destroyed, the Lafayette mother says, and now she's asking her community for help.

Mark Andrew Reins, 45, died after a shooting at a home on South Wright Street. The shooter is cooperating as prosecutors weigh Colorado's self-defense laws.

Officers responded to East Villanova Place and South Flanders Way in Sterling Hills, where a body was found near a tree.

A predawn crash on I-225 near East Alameda Avenue killed a Jeep driver and left two others hurt in Aurora.

The Weld County Sheriff's Office's Warrant Wednesday campaign publicizes warrants, while Northern Colorado Crime Stoppers offers anonymous tips.

Colorado officials say Daniel Caplin kept billing for opioid treatment in Durango long after his clinic's license expired.