Gash received his Bachelor of Arts in finance from Abilene Christian University (ACU) in 1989. While at ACU, Gash was the place kicker for the Abilene Christian Wildcats football team. He graduated summa cum laude.[2] In 2019, Gash was awarded the Jim Womack Award for professional achievement by a former ACU student-athlete.[3]
After graduating from law school, Gash served as a law clerk to the Honorable Edith H. Jones, United States Court of Appeals for the Fifth Circuit. Gash was later a trial attorney at the firm Kirkland & Ellis from 1995 until 1999.
In 2009, Gash began providing legal aidinAfrica and especially in Uganda. Over the next decade, he worked to reduce the backlog of juvenile cases, helped institute plea bargaining in the nation's justice system, and became the first American to argue a case before the Ugandan Court of Appeals. In 2012, he was named special advisor to the High Court of Uganda,[4] and in 2018 LivingStone International UniversityinMbale named him Chancellor, a largely ceremonial position.[7] In 2013, Gash won the Warren M. Christopher International Lawyer of the Year award, given by the California Lawyers Association.[8]
Gash is the author of several academic law review articles, with a focus on punitive damages.[9] In 2016, Gash told the story of his work in Africa in the book Divine Collision: An African Boy, an American Lawyer, and Their Remarkable Battle for Freedom.[10] He is also the subject of a documentary called Remand, which covers his work in Uganda.[4]