Louis, where he concentrates on counseling and litigation in the areas of trademark, copyright and unfair competition law. Before becoming an attorney, O'Neill worked in the advertising agency business, first with J. Walter Thompson Company in Chicago and later as a Vice President of D'Arcy Masius Benton & Bowles in St. Louis. He helped develop and execute advertising and marketing strategies for clients including Anheuser-Busch, Inc., Brown Shoe Company, ConAgra Foods, Enterprise-Rent-A-Car, Kal Kan Pet Foods, Kraft Foods, M&M/Mars, Northwestern Mutual Life Insurance, Pillsbury, Procter & Gamble, and Trans World Airlines. He received a Bachelor of Science in Journalism and Master of Science in Journalism from Northwestern University's Medill School of Journalism. He received his law degree, cum laude, from Saint Louis University, where he was Special Editor of the Saint Louis University Law Journal.