Since the perpetrators of school shootings, at least the mass shootings that make the news, are usually students, I'm not sure viewing the general public as a t

Since the perpetrators of school shootings, at least the mass shootings that make the news, are usually students, I'm not sure viewing the general public as a threat has much value in stopping them. Child molesters too, tend to be adults with officially-sanctioned access to children rather than random strangers.