video while the prisoners are going onto the bus? don't they do a beginning count when they start to go out? don't they do an ending count on the bus? then they would have known they were short two prisoners. >> oblivious that two prisoners are underneath the bus instead of inside it, the bus pulls out onto the street. officer morris just happens to be standing steps away. >> he was pulling out exactly the way he is now, with prisoners aboard like he has right now. pulled out, made it to probably just about right there. >> incredibly, the prisoners cling to the underside of the bus for a full five minutes, mere inches off the ground. as the bus stops at a red light, they lose their grip and fall, hitting the ground hard. at some point their handcuffs come undone. >> tracy mobley immediately got up and then took off running southbound. >> morris asks a court officer to call for help and runs after mobley, the one with an extensive rap sheet. meanwhile terry myer, a local