If you have debug mode on (type dm in console). You can press esc key and the POI teleport button to bring up a list of all POIs on the map. I think dishong is skyscraper_01. If its not in list its not on that map.
*************************************** you will need to search for skyscraper_01 which is not in pregen03 (at least not on mine)
quickest way to find a poi (if you know the name of it is turn on DM hit esc click on tppoi then type in the name "this case - skyscraper_01"), if its there, you will see it on the list. you must be running the game on your computer to use that function as it uses the poi files installed on your compy. other way is seacrhing thru the prefabs.xml for same name and then using the coords to tp to it (tppoi is much easier and faster.)