Watching it , he sees Dave confess to killing M.J. .
Katherine and Mike are waiting to fly to Vegas and Katherine takes her wallet to buy cappuccinos and knocked the camera so Mike heard Dave 's voice from her purse .
Watching it , Mike sees Dave confess to killing M.J. .
Katherine and Mike are waiting to fly to Vegas and Katherine takes her wallet to buy cappuccinos and knocked the camera so Mike heard Dave 's voice from her purse .