Updated: May 15, 2019 / 6:11 AM

Two teenagers that were accused of fatally shooting a classmate and wounding eight others at a Denver high school were charged last week on Wednesday for both murder and attempted murder.

Alec McKinney, 16, and Devon Erickson, 18, are accused of opening fire on their fellow students in two different classrooms at the Science, Technology, Engineering and Math (STEM) charter school on May 7 at the Highlands Ranch, Colorado. McKinney, who also identifies as male, was listed on the court docket under his legal name, Maya Elizabeth McKinney.

Theresa Slade, who is the Douglas County District Judge, has put all charges along with the case file under seal, banning them from the public. Each of the teenagers is now facing a range of charges, including first-degree murder, attempted first-degree murder, arson, and theft.

McKinney was charged as an adult, prosecutors said, and both Erickson and McKinney are being held without bond.