In 1994, Dana Scully examined the corpse of Doctor Saul Grissom, who had apparently died in a fire, although no evidence of a blaze was found. Scully advised visiting FBI Special Agent Fox Mulder to note the pugilistic attitude of the corpse and was puzzled that Dr. Grissom had somehow suffered all of the secondary physiological signs of being in a fire, but none of the primary signs. Although she was unable to give an explanation, Scully thought that the body seemed as if it had "believed" it had been burning. (TXF: "Sleepless")