This film takes place in a 24 hour span. The events of the film follows different characters and their experiences throughout their entire day. The film was produced by Brian Grazer who also produced the hit television show, "24", which also similarly follows different characters over a 24 hour span.
One of the boys is 19, the other 17, a minor. They would not have been placed in the same detention cell together overnight, in fact its unlikely they would have even been arraigned in the same court. Nor would the minor have likely been perp-walked in front of the press.
When Henry tries to "Stop the presses", they have to find "Chuck" to unlock the stop button... this is totally wrong; on presses like this, there are stop buttons everywhere, and ANYONE can stop the press (although they'd better have a good reason for doing so)... what if someone were caught in the press, they're going to take 10 minutes to find the guy with the key to unlock the stop button? No way...