Also in the Guide; one of the trivia questions is "who is the fifth victim?" The answer is Owen Sanders (I think), but the name tag on his work shirt said Jo-Jo.
So how does shredding people's pituitary glands cause Aboah to regain his skin pigmentation? Several folk tales were covered during the show's run but this one seemed completely fabricated.
Finally, regarding the Guide, Phil finds it quite convenient that Mulder just happens upon a demolition site near Aboah's apartment, which also just happens to be where the other victims are. While it's a stretch to be sure, evidence from another victim was old asbestos fibers, which would likely be more openly available during the demolition of an old building. This nit stood out to me because Phil made a big-enough deal out of it to publish, but there was no more plot convenience than usual. Maybe he was still recovering from the previous episode, Home
Speaking of that demo site, has nobody been actively working there for three months? At least two of the bodies were out in the open and easily noticeable. That neighborhood must also have some well-behaved kids or transients to not wonder in and 'play'.