Sisters Cheryl Genzer and Lisa Pennington left the Oklahoma State Fair Sept. 23, 1987, and were not seen or heard from until their bodies were discovered a month later in a shallow grave. They had each been shot in the head. Cheryl was 25; Lisa was just 16. Their brother left them at the fair to take a friend home, but the pair did not show up at the prearranged meet up location.
A fair employee to…