have been shot dead. The sole survivor is a man named Babcock, who reveals that he has saved the alien corpse from theft by burying it. Together, the three men bring the corpse to the United States. There, Mulder and Arlinsky perform an autopsy on the corpse, believing it belongs to a genuine extraterrestrial. After Mulder leaves to meet with Scully, a mysterious assassin, Scott Ostelhoff, arrives and kills Arlinsky. Scully introduces Mulder to Kritschgau, who claims that everything Mulder thinks he knows about aliens is a lie. He tells him that his sister's abduction was fabricated, that all evidence of alien biology are merely scientific anomalies, and that the alien body he has just examined was fake. Kritschgau claims that the entire alien mythos is a hoax perpetrated by the U.S. government as a cover for the activities of the military–industrial complex. Mulder dismisses these claims. Mulder finds Arlinsky and Babcock dead, with the alien body missing. Scully tells him Kritschgau told her that she was given cancer to make him believe. Mulder, distraught, sits in his apartment watching a conference about extraterrestrial life on television. The narrative returns to the present, where Scully reveals to the panel that Mulder died the previous night of an apparent self-inflicted gunshot wound to the head. Production The icy caverns featured in the episode were constructed inside a warehouse which had previously been used for cold storage, and required the use of truckloads of lumber and of Styrofoam. The set would become one of the most expensive and elaborate built during the series' history. The set required a constant temperature of in order to maintain the real snow and ice used to decorate it. This refrigeration allowed the actors' breath to visibly fog up, and allowed the cast to "have a place that feels real" to aid their acting. The outdoor scenes were filmed around Vancouver's Mount Seymour, with weather conditions making shooting difficult enough to require an extra day of work. The episode's production took place just a week before David Duchovny's wedding, with his fiancée Téa Leoni visiting the set during filming. The first cut of the episode was twelve minutes too long, resulting in some of the scenes in the mountains being removed. Series creator Chris Carter re-edited the entire episode two days before it aired. Carter has described "Gethsemane" as a "big ideas episode", noting that its main