 Thereafter, his formal education is difficult to verify, in part due to the often-contradictory testimony he provided before various audiences over the course of his career.At various points he claimed to have attended "prep school or college," although during a hostile cross examination in 1954 was forced to admit that he had only completed the tenth grade.Before his employment with the Federal Bureau of Investigation, Cvetic worked a series of jobs, including various sales positions as well as briefly serving at the Pennsylvania State Department of Labor and Industry.