G. John Cento began his career as an attorney at the Indianapolis law firm of Katz & Korin, P.C., where he worked with Robert Schuckit. Trans Union was a client first of Schuckit, and then Katz & Korin when Schuckit joined the firm. Cento began representing Trans Union in 2001, and between 2003 and 2005 worked almost exclusively on Trans Union cases. Schuckit then left Katz & Korin in June 2005 to form his own law firm. Cento followed, but he stayed with Schuckit’s new firm for just a month.