Mayor Wilkins ande och hans roll i skapandet av Adam

Okej, så jag vet att Adam var en mänsklig-cyborg-demon-hybrid skapad av Maggie Walsh. Jag vet att den mänskliga delen av Adam var en initiativmedlem som dödades. Den del jag är förvirrad om är att Adam-artikeln på Buffy wiki säger att:

Adam was once a human member of the Initiative who met his end at the hands of a demon corpse possessed by the ghost of Mayor Wilkins; having been one of her favorite agents, Professor Walsh vowed to bring him back to life and placed his body in her 314 Project.

Jag har sett Buffy upp till den här punkten, men jag verkar inte hitta någon referens i föreställningen om var detta nämns?

Vidare på Richard Wilkins artikel står det:

Wilkins lived on as a ghost for a while, possessing the bodies of dead animals, demons, and vampires. In the process, he was responsible for the creation of Adam, when he possesses the corpse of a powerful demon (his earlier vampire body had been captured by the Initiative) and badly injured the then-human Adam. After a battle with Buffy in the clock tower, where Buffy finally learned of his inhuman nature after she decapitating his current body to no effect. Willow, with the assistance of Xander and Buffy, sent him to the next realm. Faith later told Angel in prison that she recalled the Mayor's ghost visiting her using the body of a dead bird while she was in her coma.

När hände det här?