our damian trujillo broke the news this afternoon on twitter. then we sent alyssa goard to the campus as soon as we found out this information. alyssa joins us now. can you tell us how this went down? >> reporter: janelle, what we know came from what san jose police first said, which was that they came onto campus after hearing a report of a student with a gun on campus. they said that they did arrest a juvenile. i saw a young person, a minor here on the campus, and they did find a loaded gun here as well. the school did also send out a message to parents but it didn't mention a gun, it only mentioned an incident with students here on campus. we spoke with students as they were getting let out of school about an hour ago, and they said that they saw a group of police officers coming onto the campus, entering a classroom in a large group, and bringing out a student with them. most of the students really didn't know about what was going on during the day. in fact, most of them said their teachers hadn't brought it up, they hadn't got any type of c