As Justice William J. Brennan, Jr. wrote in the 1989 Texas v. Johnson decision...
"if there is a bedrock principle underlying the First Amendment, it is that government may not prohibit the expression of an idea simply because society finds the idea offensive or disagreeable."
Some of you people being all right with this, or even calling for punishment, for a tasteless off-hand joke, are, in my opinion, much more deserving of evaluation than this poor sod.
As has been stated before, likening this sarcastic statement, made on facebook, to yelling "bomb" in an airport is just disingenuous and, frankly, a false comparison. If this guy had walked into a school and loudly proclaimed he'd shoot up the place, then you would have a point.
As it stands, this is a gross overreach of police power and a violation of numerous rights afforded to a U.S. citizen.
By all means, investigate the kid. But that is all. Going to these lengths, setting the bail so high, placing the kid in solitary, only after he was beaten by other inmates, and not holding a hearing for months, even as their investigation turned up absolutely nothing of value...
How can any of you defend something so reprehensible? Gods above, I certainly don't hope something so terrible should befall any of you lot.