Two former executives of Medical Manager Health Systems have been found guilty of conspiring to fraudulently inflate the company's revenues by more than $16.8 million between 1997 and 2003 while the company was headquartered in Tampa. John Kang, 46, Medical Manager's former president and John P. Sessions, 67, former chief operating officer, were convicted following a seven-week jury trial in federal court in Charleston, S.C. They each face up to five years in prison and a fine of $250,000. Previously six former Medical Manager executives had pleaded guilty for their roles in the scheme. In January, Michael A. Singer, founder and former chief executive, signed a deferred prosecution agreement and agree to forfeit $2.5 million. Two other former executives await trials in Tampa later this year.