Synopsis:
Reed's blog accuses a man of being the "Cabbie Killer" and then the man shows up dead. When Mac goes to confront Reed about his source, he finds Reed missing. As the team searches for him they learn that the real "Cabbie Killer" is on the loose and he has Reed. As Reed begins posting to his blog from captivity, Stella and Mac use the clues he's giving them to track down where the killer is holding him.