Both Behemoth and Odin spawned today (11/07/2014) on Goblin, and both were defeated.

Behemoth - Spawned at roughly 4:38pm PST and was defeated at 4:50pm PST.

Odin - Spawned in S. Shroud at roughly 5:19pm PST and was defeated at 5:32pm PST. He was level 59.