 Skinner returns to the routing center where he tears a hole in the bathroom wall and finds a large honeycomb of dead bees . He visits an entomologist to look at one of the bees and is told that Mulder visited him six months ago about a similar subject . Skinner finds Mulder 's file on the matter , copying down the contact information for Marita Covarrubias ( Laurie Holden ) . Mulder tells Skinner that a bank near the police station took a picture of the detective , which shows him with Skinner , but the picture is too obscured for Mulder to identify him . Skinner calls Covarrubias , who does not have any evidence to provide him at this time . The entomologist is killed by a swarm of bees . The next day , Mulder and Skinner look at his body , which is infected with smallpox transmitted by the bees . Skinner visits the co @-@ worker of the postal worker who died , who tells him she was pressured to not say anything about what happened by men who demanded a damaged package . At the photo lab Mulder analyzes the photo , which reveals Skinner 's identity . 
