According to police it happened at 2:00am inside Richardson's home.
Officers responded to the scene to begin an investigation but, at the request of Prosecuting Attorney Kyle Hunter, the investigation was turned-over to Special Agents of the Arkansas State Police Criminal Investigation Division.
Smith, 44, of Pine Bluff sustained a gunshot wound during a struggle with Richardson. Staet police said he left the home and drove himself to Jefferson Regional Medical Center for treatment where he remains hospitalized.
We will have more updates as they become available.
Copyright 2015 Nexstar Broadcasting, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.