Tonight, Terminator: The Sarah Connor Chronicles unexpectedly killed off one of the show's major characters: Derek Reese. Just when Brian Austin Green (of 90210) was proving he had some acting chops, his character was shot in the head by a newly discovered T-888. For fans of the program, his death was simultaneously disappointing (because he was a great character) and awesome (because it demonstrates that the show's writers are willing to take risks).
Let's just hope that Derek's sacrifice was not in vain. Fox, please don't cancel this program.