Mortal Kombat II Comic
Upon Shang Tsungs return, King Gorbak asked Shao Kahn to execute the sorcerer blaming him for the death of his, son Prince Goro. He demanded that he be allowed to take Shang Tsung back to Kuatan and execute him in front of the Shokan. Shao Kahn, however, decided to spare Shang Tsung in order to see what he has planned. In agreement, King Gorbak said he should also send a Kuatan warrior to help as well, and offered the services of Kintaro.
Mortal Kombat 4 Comic
Goro mentions his intent on taking his father's role as the leader of the Shokan, implying that King Gorbak died at some point between Mortal Kombat II and Mortal Kombat 3. The canon status of this comic, however, is debatable.