Four riders hunter-killers. One of them is leader, one warrior and two others choosen randomly and can be warrior, archer or mage.
There's a 5% chance in one second for leader to choose target player within 200 tiles . After selecting the target, the gang trying to pursuit target. If player is killed the gang will ambush in this place. After some time the gang will try to return to the home location. If the Leader dies, all the gang members will lose control. If all members of the gang is dead, the spawner-item removes self.