when brian went missing. but the affair gave dale a motive so, they checked the car. it was checked for gun shot residue and blood. >> nothing we found. >> and they both took poly graph tests and they both passed. and then investigators discovered another potential lead. >> a they were arrested for stealing metals off of the property and pawning them in junk metal shops for junk metal. >> in fact, one of those guards was at the guard shack just minutes after brian was reported missing. >> brian was one of those at the guard shack who reported these