He owns John W. Walker, P.A., a general practice operation. He received a bachelor’s degree from the University of Arkansas at Pine Bluff, a master’s degree in education from New York University, and a law degree from Yale University. He is involved with many organizations, including the NAACP Legal Defense Fund, the National Bar Association, and the Southern Trial Lawyers Association. He is a recipient of the Southern Trial Lawyers Association Warhorse Award, and a National Bar Association Achievement Award. A native of Hope, Arkansas, he has also served in the Arkansas State Legislature.