They were agents of a foreign government. That puts them in the "foreign military or diplomat" category, and way out of the "subject to the jurisdiction.
Might be a good case to take to court to serve as later precedent.
As to the subject of jurisdiction [other than criminal and humanitarian protections], it seems that the government has to have knowledge that a foreigner is in the country in order to confer the "privileges" that are conveyed by jurisdiction. That is why the government requires registration of visitors at customs, etc.
So, I would say that all illegal aliens [ie: non-registered] are not entitled to the privileges that come with jurisdiction and that their children are also not entitled.