Armed U.S. Army trainee hijacks school bus full of children, S.C. sheriff says

[MarineCombatEngineer]

8. But how did he leave base with a rifle?

I'm assuming it was an M-4 and if so, I find that very strange.
When I was in the Marines, every rifle, every bullet, every magazine had to be accounted for and secured before we could leave, so, this is very suspicious in my mind.