4. Lamb of God
The Church of Jesus Christ of Latter-Day Saints outlawed polygamy in the late 1800s, and this decision caused a number of extreme fundamentalist groups to spin off and move to isolated areas of the American Southwest or Mexico. The Church of the Lamb of God has murdered over 20 people under the direction of polygamous Mormon fundamentalist Ervil Morrell LeBaron, who began the group by murdering his own brother over an inheritance and leadership dispute. He dispatched group members to kill his enemies and dissenters and was convicted of conspiracy to commit murder. Before dying in prison, he wrote a hitlist for members to continue to pick off one by one.
