had thrown those shoes away because they were damaged on an accident scene investigation. >> but a check of griffin's cell phone records contradicted his alibi that he was home sleeping that night. records show that griffin made a cell phone call around 2:00 a.m. to a tow truck company. when confronted by his superiors, griffin changed his story. he said he was sitting in his police car in uniform at baker's intersection in a restaurant parking lot after his shift ended, reading a book. >> he claimed to be sitting in that parking lot reading this law book at this restaurant that was closed. >> and the motorist asked for him to call for a tow truck because his car broke down nearby. this put officer griffin on baker's intersection just a half hour to 45 minutes before kim medlin drove by on old charlotte highway. josh griffin denied any involvement in kim's murder, but