Chris Aguilar, 16, spoke little during his initial court appearance in Phoenix, while loved ones of Michael Montoya, 16, broke down into sobs.

The department would not specify what that item was. Parents waiting outside the school to reunite with their children told 12News the deadly altercation has them worried for their students' safety, especially when weapon detection systems are in place on campus.

Court documents reportedly reveal a possible motive in this week's deadly knife attack in a Maryvale High School classroom.

Chris Aguilar, 16, has been charged with murder in the stabbing death of Michael Montoya II. Aguilar had a 4-inch knife, court records said.

PHOENIX — The suspect in a stabbing that left a student dead at Maryvale High School in west Phoenix is in custody, Phoenix police say. Phoenix police officers responded to a stabbing call at Maryvale High School before 11 a.m.

Two students were involved in a stabbing at Maryvale High School, resulting in one death and another in custody.

Maryvale High School in west Phoenix is currently under lockdown after an incident in a classroom that injured a student.