Wow I am so sorry to hear that. As you know we are neighbors. I would recommend you call Don at Sportscards NW in University place. Another dealer told me that Don helped establish a network with all of the bigger dealers in the NW. When one of their stores loses items to theft they send a email description or photo of the stolen items to every member of the network. Whenever one of the members has a seller walk into the store they check for the stolen item. Its kind of (pardon the analogy) an Amber Alert for memorabilia and cards. I do know that there have been arrests made through this network. Don is a great guy and I'm sure he would help you out.
http://www.nw-sportscards.com/