Colorado has become the first state in the United States to limit co-payments for insulin. For diabetics with private insurance who rely on insulin to control their blood sugar levels, ...

The father of Colorado school shooting suspect Maya "Alec" McKinney is an illegal immigrant and serial felon, according ...

DENVER—A security guard credited with capturing one of the two suspects in this week's suburban Denver school shooting ...

Kendrick Castillo was the 18-year-old sole victim of the May 7 Colorado school shooting. He died while trying to ...

Two teenage students accused of fatally shooting a classmate and wounding eight others in a suburban Denver school ...

The 18-year-old suspect in a school shooting in Colorado shared at least one social media post that was ...

Two students opened fire on May 7 inside a charter school in an affluent suburb of Denver not ...

A Colorado police officer went viral after trying to distract a little girl whose parents were involved in ...

The man police said caused a 28-vehicle crash on I-70 in Colorado sent a message to his supporters from ...

COLORADO SPRINGS—Police have ended the search of a Colorado landfill for the remains of a woman thought to ...

A teenage hunter in Colorado was fined $20,000 for illegally killing a moose. Callan Hyatt, 19, pleaded guilty ...

Lawmakers in Colorado signed a "Red Flag" gun bill into law on April 12 that will allow the ...

Denver, Co.—Weld County Sheriff Steve Reams disagrees so much with a gun bill making its way through the ...

The number of cannabis-associated emergency room visits has risen by a factor of 3 since recreational marijuana was ...

Emergency-room visits related to cannabis use in Colorado—the first U.S. state to completely legalize its use—have tripled at ...

A Colorado clerk rescued a baby just seconds before the child's mother collapsed from a seizure. The incident ...

Convicted murderer Chris Watts said he blamed his pregnant wife for the Aug. 13, 2018 murder of their ...

DENVER—Historic avalanche danger caused havoc in the Colorado mountains March 7, shutting down portions of two highways and ...

DENVER—Attackers who killed a man in Colorado may have held up a store in Wyoming and a bank ...

It's 1:48 a.m. and a pregnant Shanann Watts is arriving home from a business trip to Phoenix. Front-door ...

DENVER, Colorado—After urging a woman he was having an affair with for months to kill his fiancee, investigators ...

Nearly three months after Colorado mother Kelsey Berreth went missing, evidence will be presented and witnesses will be ...

A Colorado couple was able to lose over 200 pounds together by changing their diet and adding exercise ...

The owner of the Colorado store that stopped selling Nike products after the corporation's controversial Colin Kaepernick advertisement ...

An Idaho nurse charged with tampering with physical evidence in the case of Kelsey Berreth, a missing Colorado ...

A 17-year-old was "purposefully set on fire and burned alive," police officials in Colorado announced on Jan. 28. ...

A close friend of Kelsey Berreth, the Colorado mother who is believed to have been killed by her ...