Yes, this. More of a protective custody.
Protection from the herd of independent thinkers.
I'm wondering why there hasn't been some serious effort to get these boys out on bail. It's not as if they have a criminal history and they aren't a flight risk. No reason to expect they would kill anyone else. Would a writ of habeas corpus be in order?
Likely stalling to let the news cycle die down a bit so nobody out there tries something stupid.