From what I understand, he didn’t enter the school until 7th hour. How did he get through the door in the first place? Wouldn’t the office have to buzz him in? Are the doors left unlocked while school is in session? Since 9/11, every school I know of in my city had instituted strict measures as to who entered after final bell, and while students entered as well. The office knew who he was and knew he wasn’t to be allowed in. I don’t understand how he even gained access to the school.
From the description I heard, the school had over 3,000 students. And there were many buildings. It would be impossible to buzz everyone into the buildings one by one. A key card system would be better but probably chaos because kids for get their card, and a card can be stolen too...also the queues would be long waiting to swipe your card, even if you had a couple card ID card readers.
I can’t see how increased security could help these large schools unless you increase the amount of security to at least one per building. A nearby huge
high school has about 10 distinct buildings...and that doesn’t even count the
outdoor sporting areas like the football stadium or open exercise fields.