A Gainesville man on trial for murder was previously married to the wife of the victim, testimony in Hall County Superior Court revealed. Joseph Scott Williams, 33, is accused in the June 3, 2013, shooting death of 37-year-old Adrian Thompson outside Pepper’s Grocery & Market on E.E. Butler Parkway in Gainesville. Williams’ attorneys said the act was self-defense, and is a theory understood only in the context of their 20-year relationship.