A student reflects on red flags ahead of the Columbine High School shooting 1999. What are the warning signs? An expert explains what behaviors might be warning signs.

The Moore brothers have nearly 75 years of trauma surgery experience between them. The pair grew up with guns, but they have differing opinions about who should have access to semi-automatic rifles, like the AR-15.

A man who fired his gun on a school campus as a 14-year-old in 2003 said he regrets that he thought that was the best way to protect himself. “If I had the wisdom and knowledge I have now, I definitely wouldn’t have made the decision I made," he said.

Colorado has become the 15th state to allow temporary removal of firearms from a person who is determined to be a threat to self or others.

The battle over the controversial “red flag” gun bill overcame its first hurdle in the Colorado Senate Friday on a party line vote as members of the Democrat-controlled chamber heard impassioned pleas from gun rights advocates to kill the measure. The measure now moves to the appropriations committee and will move to the Senate floor if approved.

The Colorado legislature will consider a new red flag measure to create a legal method to remove firearms from people with mental illness deemed to be an extreme risk to themselves or others.

Rocky Mountain PBS joined some of the top journalism organizations in the nation when it received an Alfred I. duPont-Columbia University Award this year.

Incoming House Majority Leader says he will introduce a bill allowing involuntary treatment of mentally ill and temporary safekeeping of firearms. With Democrats now in control of both the House and Senate, Alec Garnett (D-Dist 2) believes the measure has necessary support to pass.

Five years ago, Colorado voters decided to stop sending adults to jail simply for using marijuana. Proponents said the legalization of cannabis would have a healthy side effect: it would kill the sale of illegal marijuana in Colorado. But instead law enforcement officers say Colorado has become a major exporter of illegal marijuana.