29831 THE X-FILES: A series of mass killings leads Mulder (David Duchovny, L) to startling evidence of extraterrestrial life while Scully (Gillian Anderson, R) confronts an unexpected new threat to her life on THE X-FILES episode  Patient X,  airing Sunday, March 1 (9:00-10:00 PM ET/PT) on FOX.  1998 FOX BROADCASTING COMPANY CR: MARCEL WILLIAMS Photo: MARCEL WILLIAMS, FOX / FOX BROADCASTING COMPANY