How Do You Catch A Thief?

My brother and I are trying to catch a thief that robbed us today or last night. Our family went to our Lake House at 5:30pm.We came home at 2:30 and when we saw our house ransacked, we called the police immediately. Our dad left about 30 minutes later. They took an Xbox 360, 2 Xbox controllers, my brothers laptop, Cod BO, MW2, and a Wii. We think it's our next door neighbors because they've snuck into our hOuse before and robbed us before. One of them already has a criminal record too when the other doesn't. They are brother and sister while the brother is a drug dealer. He delivers to another drug dealer up the street. Our neighbors suspected something was going on. We need a lot of help because it's our stuff they stole and we want it back. Can you give us any ideas. We are going to Gamestop to tell them if anyone comes in selling a Xbox360 2 controllers a Wii and BO and MW2 that those were stolen.