DeGuerin & Dickson. Firm Website. City. Houston Texas Super Lawyers, Law & Politics and the Publishers of Texas Monthly, –. Having famously represented the likes of cult leader David Koresh, accused murderer Robert Durst, and House Majority Leader Tom Delay, there's no bigger player in the Texas criminal defense game than Dick DeGuerin. He's the first choice for those facing heat in the Lone Star State, from U.S. senators to Enron bankers.