Agents  Scully and  Doggett investigate a seemingly impossible string of murders committed by an assailant with no apparent access to the victims. As they gain more information about the mysterious murderer and the circumstances surrounding the case, they uncover an
unprecedented medical anomaly in the "SureKill" episode of THE X-FILES Sunday, Jan. 7 (9:00-10:00 PM ET/PT) on FOX. (XF-809) (TV-14; L, V)

Cast: David Duchovny as Agent Fox  Mulder, Gillian Anderson as Agent Dana Scully, Robert Patrick as Agent John Doggett, Mitch Pileggi as Assistant Director Walter  Skinner

Guest Cast: Kellie Waymire as Tammi Peyton; Michael Bowen as Dwight Cooper; Patrick Kilpatrick as Randall Cooper; Tom Jourden as Carlton Chase; Joe Sabatino as Capt. Al Triguero; Ty Upshaw as First Officer; James Franco as Second Officer; Noel Guglielmi as First Gangbanger; Greg Boniface as Second Gangbanger