1. He heard abt Edison's series of pic and was beri gian to come out and surf net.
2. He is an undercover cop in the detention, but his supervisor in the police betrayed him, leaving him with no choice but to find his own path
3. He was in the detention all along, but the police had some secret plans to catch his partners in crime
4. Police found that they had wronged him all along as he was not a terrorist in the first place. Hence he was quietly sent away
5. He don't even exist in the first place.

Disclaimer: The above "He" do not refer to anyone in particular