DOUGLAS COUNTY, Colo. (KKCO)- The 16-year-old student who was charged as an adult in connection with the deadly May 2019 shooting at STEM School Highlands Ranch pleaded guilty Friday afternoon to 14 felony charges, one misdemeanor charge, and two violent crime charges during an arraignment hearing.
Alec McKinney pleaded guilty to the following charges:
• First-degree murder for the death of Kendrick Castillo
• Conspiracy to commit first-degree murder after deliberation
• Six counts of attempted murder after deliberation
• Attempted murder extreme indifference
• Second-degree assault
• Conspiracy to commit arson
• Conspiracy to commit burglary
• Conspiracy to commit criminal mischief
• Possession of a weapon on school grounds
• Possession of a handgun by a juvenile
• Two crime-of-violence sentence enhancers
McKinney and his co-defendant, 19-year-old Devon Erickson, are accused in the May 7 shooting that resulted in the death of 18-year-old Kendrick Castillo.
Castillo is lauded as a hero for joining other classmates to rush one of the two gunmen.
Eight others were also shot. Two of them were injured by a private security guard at the school who helped detain one of the teen suspects.