LOUISVILLE, Ky.--(BUSINESS WIRE)--Tranzon Asset Advisors, a Kentucky-based national accelerated marketing firm, successfully completed the sale of Old Carter Whiskey Co. to an investor group led by Mark Carter, one of the distillery's original co-founders, for more than $20.5 million. The sale, conducted through a modified sealed bid process and followed by an online auction for qualified bidders, included Old Carter Whiskey Co., Kentucky Spirit Bottling, a substantial inventory of both barrele