Chinatown square - Leaving the square | 2: The King of Chinatown Hitman: Absolution Guide
Last update: 11 May 2016
General assumptions: Leaving the mission location is required to complete it. You should have no problems with that, unless you've triggered alarm in the meantime.
Leaving the mission area should be of course done only after killing or poisoning the King of Chinatown. But before you do this, I suggest completing one more optional actions - obtaining evidence located in the fenced area. It can be safely obtained only after putting on Chicago policeman disguise (do not forget to use Instinct to cover your face) or dealer disguise (you do not have to hide).
The exit from the square is located on another end. This is a door at the end of alley, where the King of Chinatown was stopping from time to time. Open the door to officially end the mission.