If Laurean is still a Mexican national, would his offspring, even by an American woman, also be considered a Mexican? It’s a stretch, but what if Laurean had killed another Mexican citizen in the United States?
"In regard to citizenship, some countries follow the legal principle of jus soli, which determines a person's citizenship according to where he was born. Other countries adhere to jus sanguinis, which generally defines an individual's citizenship according to that of his parents. Under U.S. law, persons born here are automatically U.S. citizens. In most situations, moreover, a child born abroad to a U.S. citizen is also considered to be a U.S. citizen. The U.S. is thus one of a number of countries that incorporates both the jus soli and jus sanguinis doctrines in its citizenship law."