The former CEO of DeMoulas Super Markets, Inc. He was ousted as CEO in a family dispute over the future of Market Basket. He has lived here since 1989.
UPDATE: After months of turmoil an agreement was reached for Arthur T Demoulas et. al. to buy Market Basket shares from the family members who fired him.
Links: www.bloomberg.com, en.wikipedia.org, www.mydemoulas.net, www.bostonherald.com