The first thing that tipped off Cody that they had a little rat digging through their stuff was when the bag he had tossed into the trash was torn open the next morning. Then Obi-Wan said that something was ticking him off that he couldn't place, like a little flicker in the force that kept edging around their apartment building on coruscant. It took some talking, but the two eventually settled on one thing. The kid that kept stealing from them would not be left to the streets if they had anything to do with it.