Grark Lorkrub

Grark Lorkrub was a level 56 orc quest giver located in Blackrock Stronghold in the contested territory of Burning Steppes. He was traitor to the Horde, giving the Blackrock clan orcs vital information about the Horde's operations. After taken captive by adventurers he was executed by High Executioner Nuzrak.

He ended the quest and started the escort quest  (Elite).

He is no longer found in-game since the Cataclysm, making his death final.