Please see my post #43 on this
Well, that’s the classic use of the public safety exception. (Good work, by the way.)
Here, the guy already knows he doesn’t have to talk to police. It’s hard to find a college student in the country who doesn’t know that.
And a lot of robbers actually wouldn’t want a kid to find his gun and get hurt or hurt someone. A lot of them may be robbers, but are still human beings.
But THIS guy is a jihadi terrorist dirtbag. Asking him “where are the rest of the IEDs?” isn’t going to make him more likely to tell you by not mirandizing him. He WANTS innocent people to get blown up by them.