Samuel Aboah

From X-Files Wiki

Samuel Aboah (played by Willie Amakye) was a teliko who traveled to the United States from Burkina Faso. He lacked a pituitary gland and assaulted African-American men in Philadelphia to replenish his hormones after disabling them with a blowdart. In this manner, he murdered five men and nearly killed his INS agent Marcus Duff and Agent Mulder. Aboah was subdued after being shot by Agent Scully and was to be tried for five counts of murder, but there was doubt that he would even survive long enough without hormonal replenishment to be tried. (TXF: "Teliko")