As the thief (who's name Isaac still hadn't learned) ran out towards the back room, Isaac realized that he was also in trouble now. Although he hadn't killed anyone, there was no proof that he didn't. Just a bunch of jawbreakers thrown by arms that probably had no finger prints and many more jawbreakers cut in half... The only thing in the room that could have cut them in half with that sort of precision would probably be a sword...which was in his hands. It looked like the thief was home free with his prize and Isaac needed to get out of sight. It was probably now time to look for the invisible titans. They were the only reason why Isaac came to Jump City anyway.
Isaac looked up to the glass cieling where he was expecting the titans to crash through and jumped from pillar to pillar to crash through it the opposite way. On the roof he looked out towards the lake, the woods and the possibly deserted titan's tower. He looked back down and thought that one may have seen his shape in the moonlight but that made no difference. There were plently of kids in this city and plenty with very strange powers. He was home free.
Isaac closed his eyes and transformed into the small black cat like he had been doing for decades and started heading for the tower.
(OOC: Nice getaway. I hope Marcus and Isaac meet again when he will actually be wanting to fight
)