The Hands of God, led by Jeremiah Rigdon, have recently attacked and burned three of Jericho's caravans. There were no casualties on either side, but O'Conner feels the Hands of God may soon become a bigger threat, so he wants the PC to enter the Mormon camp and assassinate Jeremiah if Jeremiah cannot be convinced to lay off the caravans.
Stealth Boy - Kill Jeremiah without alerting the camp.
Charisma Boy - Convince Jeremiah to back down and make peace with Jericho (Persuasion/Hard). Or, trick O'Connor into thinking the Mormons are planning an attack, and get his militia's help in wiping out all the Mormons (Deception/Hard).