A memorial service is planned for a student hailed as a hero for tackling one of two teenage gunmen who attacked his suburban Denver school.
A celebration of life will be held Wednesday at Cherry Hills Community Church in Highlands Ranch for 18-year-old Kendrick Castillo.
Castillo and two classmates have been credited with helping thwart the attack by charging at one of the shooters in a classroom.
Castillo was a member of the school's robotics club who loved to tinker on his projects and worked part-time at a manufacturing company. He was set to graduate days after he was killed.
Formal charges are expected to be filed against the suspected shooters on Wednesday.