The second gunman who allegedly opened fire on classmates at a Denver High School has been identified as Alec McKinney.
When McKinney appeared in court on Wednesday, his attorney said he preferred the pronoun 'he', according to CBS Denver.
McKinney waived the reading of formal charges. He is being held without bond. Erickson also didn't enter a plea and was ordered to return to court on Friday.
The FBI is currently involved in the investigation inside the school.