Randall Hall is the owner of a club. He is passing methamphetamine through the club. They confront Hall, who tells them that Rulz built himself a new studio a day after Mount went missing. They take Rulz in, and he tells them that Mount was going to jump labels from Randall Hall's Basement Records, and that Randall paid for his studio. From this they have Randall's motive: Mount was going to jump labels and Eve was stealing his methamphetamine and cash to pay for them to have a better life. Booth goes to the club and Randall hits him with his cane. Brennan realizes that his cane is what caused the bone dimples on both bodies. This is confirmed when a test in the lab show the cane created them both. They now have forensics that confirm he is the killer.