Devon Erickson

20-year-old defendant has pleaded not guilty to first-degree murder in the killing of Kendrick Castillo two years ago. His co-defendant was sentenced to life last summer.

Alec McKinney, who will be eligible for parole after 40 years, spoke publicly for the first time since the attack, apologizing individually to his victims. “I don't deserve leniency nor forgiveness,” he said. “I don't want a lighter sentence.”

In a court filing on Thursday, 18th Judicial District Attorney George Brauchler did not explain the decision not to seek capital punishment for Devon Erickson

The Colorado Sun learned of the school's stipulation to BOSS High Level Security through an open records request. The guard's possession of a gun during the May 7 mass shooting may have violated Douglas County School District policy.

The alleged shooters entered the Douglas County charter school through a door where they knew handguns and rifle they carried would not be detected, documents say

Alec McKinney's attorneys immediately launched an effort to return the case to juvenile court

Joshua Jones, an 18-year-old senior at STEM School Highlands Ranch, said during a news conference Tuesday he was watching "The Princess Bride" in his British literature class when a classmate pulled a gun and told everyone to stay still

The last student still hospitalized in last week's school shooting was released from medical care over the weekend