A 17-year-old former Lakeside High School student who was made a ward of the court and will be placed in a home.
A placement review hearing is slated for Aug. 30 for the boy, who was also placed on probation.
The boy has been in Juvenile Hall since his arrest.
A lawyer for the youth had asked that the boy be allowed to go home pending sentencing.
Authorities have refused to say what happened after the boy arrived on campus with the gun and knives on March 2, but they did say he got into a classroom.
The day of the March 2 incident, Mark Dennis, coordinator of community and media relations for the Lake Elsinore Unified School District, said, “the student quickly surrendered to school authorities. The incident did not develop into a further threat or tragedy. The school did not go to a lockdown."
Dennis said the boy sought out a teacher.
“I think it was more of a cry for help," he said.
There are press reports that the boy has a form of autism called Asperger's Syndrome.
The youth was a high school student at another campus at the time of his arrest. Authorities have not released his identity due to his age.