Wearing only a ski mask and tennis shoes, an Air Force Academy cadet risked expulsion and ran naked through the school's dining hall more than 40 years ago. The 1974 streaker's identity was a secret to most of his peers and Academy officials. What became a memorable moment for many in the Academy's 1975 graduating class turned into a decades-long question about the streaker's identity. The mystery ended Friday night, at the class' 40th reunion, when the man revealed himself again to his classmates. This time, Jerry Wallace was fully clothed. "It was great fun.