YMMV / Criminal Minds S 13 E 22 Believer

• Complete Monster: "The Messiah", Benjamin David Merva, born David James Merva, is possibly the most prolific serial killer ever faced by the BAU. Merva, aka "the Strangler", a survivor of the Liberty Ranch hostage crisis, eventually founded the Believers. The Believers kidnap people from all over the country—protector types according to the BAU—and Merva kills them, giving the hyoid bones to the Believers. Just as 300 angels protected the Garden of Eden, Merva aims to collect 300 hyoid bones. He has killed 299 people so far, and plans to make Spencer Reid the 300th victim.