Nearly 30 high school students from throughout the country are gearing up for mock trials as part of a trial advocacy program winding up this weekend in Naperville.The Mock Trial Academy began in 2004 and about 200 students have participated in the program, said Ari P. Fisz, a Lake County assistant state's attorney who founded the academy.Fisz estimated that at least half of the academy participants eventually attended law school."It seems like that's the path that a lot of them take," Fisz said.Fisz said he …