Zynga has been running a contest since mid-November to make a boss for their upcoming expansion to Mafia Wars. The contest has finally concluded, and Zynga has announced that the winner is Ruang Sak. Not much is known about his role in the expansion, but his general background is explored in the contest submission video. He is a businessman by day, Muay Thai fighter by night, and incredibly ruthless no matter what time it is. Check out the contest-winning video after the jump.