. >> reporter: that was a widely held view at the air force academy, according to brandon enos, the agenth the osi assigned to investigate sex yawl violence and members of the football team. he says the code of honor did not seem to apply to many of them. >> it is very difficult to get into that circle and they usually don't snitch, for lack of a better word. >> reporter: but enos found a way to break that code of silence, with an undercover cadet by the name of eric thomas, a soccer and football team member who agreed to become a confidential informant. >> i thought, absolutely. we're talking about sexual assault here. real crimes affecting real people and having consequences that last a lifetime. >> reporter: thomas worked for almost a year as a confidential informant. they met on the vast you a cadmy campus at night, as thomas, who wore a secret tape recorder, provided detailed reports on his fellow cadets' alleged criminal behavior. >> i would report a sexual assault. the information i'm providing is what every other cadet should pride. >> reporter: thomas was a gold mine of informati