It seemed odd. >> he told us that he and nathan went to chatsworth park near the tunnel to look for baker. why would anyone look for their friend at chatsworth park near the tunnel if he was kidnapped? >> anyway, duncan kept talking. offering information which, might be true. or not. >> we asked dunkin'to take a polygraph test. >> how do they do? >> he failed it, and all pertinent questions involving the murder. >> oh. soon after that, he lawyered up and stop talking. >> i thought we were going in the right direction because we had the right people. now, the motive for the killing. it's still ...