I'm with you on this, he's probably a fall guy who's "caught" because he "confessed" or something like that. Two reasons for this; one, Twitter isn't exactly the kind of joint you stroll into and take over, it's not really an amateur operation and people are attacking it all the time. Second, coordinating all this work is not a simple one-person job. The timing of the attack suggests lots of coordination, practice, or both. Could one kid do it? Maybe, but highly improbable. And if it turns out this kid did do it, the CIA is going to find a way to own his ass basically forever.