Judge Williams graduated from the University of Iowa College of Law in 1988. He clerked for Chief Judge Donald E. O'Brien of the Northern District of Iowa for two years, after he worked for the US Department of Justice in Washington, DC, for two years prosecuting criminal cases. From 1992 to 1997 he worked as a trial attorney for Lathrop & Gage in Kansas City, during which time he also taught Federal Criminal Law as an adjunct at the Kansas City School of Law. From 1997 until 2016, he was an assistant US Attorney in Cedar Rapids doing criminal prosecution. In 2016, he became a Federal Magistrate Judge for the US District Court for the Northern District of Iowa. In 2018, he became a Federal District Court Judge for the US District Court for the Northern District of Iowa.
- JD, University of Iowa College of Law, 1988