The week of the anniversary, one of those threats shut down area schools for almost half a million students when an 18-year-old Florida woman who authorities say was a threat to the community flew to Denver, purchased a weapon and seemingly disappeared.
Longtime friend Cece Bedard told the Post that he and Kendrick Castillo spent a lot of time at Knights of Columbus meetings in their childhood with their fathers. All but one of the injured students has been reunited with their families, Spurlock said.
The school has about 1,800 students ranging from kindergarten to 12th grade and Spurlock said the shootings took place at two separate locations within the school.
No school resource officer was assigned to the school, but the school has its own private security and other officers in the area were able to respond to the scene. "I want people to know about him", he told ABC News.
Tony Spurlock, the sheriff of Douglas County, declined to confirm reports that she was transgender and had been bullied for seeking to transition from female to male.
Authorities said the two suspects are students.
The sheriff confirmed seven student injuries, possibly eight, and two suspects are in custody.
When tragedy struck at a suburban Colorado high school, a quick-thinking student, Kendrick Castillo, bravely tried to step in and save his fellow classmates.
Authorities on Tuesday identified the juvenile suspect as a boy but Spurlock on Wednesday told reporters that the juvenile suspect is a girl. They have contacted the family, he said.
FOX 31 reported that STEM School will be closed for the rest of the week.
Two suspects have been arrested, but one is reportedly still at large.
"All of a sudden a guy pulled I believe a pistol, I'm not sure, out of a guitar case and start to shoot", Montoya said. Five had been released by Wednesday morning but three remained hospitalized in intensive care, Spurlock said.
The student killed in the Colorado high school shooting was fascinated by engineering and eager to help others.
The anniversary came a few days later, and when it was over, the relief was palpable in the community, said John McDonald, head of security for the Jefferson County Public School District.
Because the attack at STEM School Highlands Ranch happened only miles from Columbine and just weeks after the shooting's 20th anniversary, questions quickly arose about whether it was inspired by the 1999 massacre.