Granville Ames

Hotch is left fighting for his life after The Reaper stabbing. Meanwhile, the BAU investigates the case of a missing teen with her father as the primary suspect.

The body of a petty officer is found on a golf course, and McGee tries to locate a key witness with the victim's ham radio; Palmer looks to his co-workers for donations to a charity building playgrounds for children.

An ISN journalist reports live from the space station on the conflict between the Narn and Centauri and how it will affect the future of the Babylon project.

Strange antics, such as boarding up his windows, cause Melinda and Jim to question the sanity of their new neighbour. It isn't until Melinda sees a ghost attached to the neighbour that she realises he is not only being haunted, but that the ghost is trying to kill him. Upon confronting the ghost, Melinda learns that he is seeking revenge.

Alex uses an unconventional remedy to save a dying patient. A Halloween-hating couple tests Iris' patience.

A dead body falls from the sky, and the team discovers that he had been a passenger on a private commercial space flight.