Overview

• Police identified the victim as 16-year-old Michael Montoya II, who died at a hospital after the Aug. 19 attack at Maryvale High School.
• Chris Daniel Aguilar, 16, was detained at the scene, treated for a hand cut, and booked on a second-degree murder charge under Arizona’s adult-prosecution rules for juveniles.
• Witnesses, including two teachers, told police Aguilar was the aggressor, while a classmate described him moving seats, punching Montoya, and stabbing him three times.
• Court records note a video of the incident and a four-inch folding knife etched with Aguilar’s name that a school security officer recovered after it was dropped outside the classroom.
• Investigators are reviewing accounts that Montoya had previously robbed Aguilar of a gun, classes were canceled for the rest of the week, and court hearings are set for Aug. 26 and Aug. 28.