Richard Sharp | CarMax cofounder, 67
According to CarMax and investment firm V-Ten Capital Partners, Mr. Sharp died Tuesday from a rare form of Alzheimer's disease.
The Alexandria, Va., native joined Circuit City in 1982 and served as CEO from 1986 to 2000. During his tenure, the company's revenues grew from $175 million to $10.6 billion.
In the early 1990s, Mr. Sharp headed a team at Circuit City that led to the development of CarMax. He also was a founding investor of footwear company Crocs Inc. and served on its board.