That McAfee video is creepy as fuck and is absolutely some sort of confession of an act or a confession of knowledge.
Gilgamesh had to travel to the EVERGREEN forest to find and kill Humbaba. IIRC, going from memory, Gilgamesh wanted to kill Humbaba and inherit his 7(?) auras. He then chopped down a huge cedar tree to float Humbaba’s head down the Euphrates and then used that tree to build a door for the temple of Elin.