This seems like it needs futher clarification for future digs:
The Owl is the network Jews use like a secret club. The Y Head is the non public Satanic Cult who worship the Golden Bull/Golden Calf.
The antlers and deer head is something different. The deer head and antlers represent an object of affection to these satanic cult followers and pedophiles. This is why the roths have the photo where it is the woman with the deer head, and it is why they find the woman dead in True Detective with antlers.