Zeeo chance he can be prosecuted by the ICC. The US literally has laws.preventing it and will semd in the military.

https://www.hrw.org/news/2002/08/03/us-hague-invasion-act-becomes-law

U.S. President George Bush today signed into law the American Servicemembers Protection Act of 2002, which is intended to intimidate countries that ratify the treaty for the International Criminal Court (ICC). The new law authorizes the use of military force to liberate any American or citizen of a U.S.-allied country being held by the court, which is located in The Hague. This provision, dubbed the “Hague invasion clause,” has caused a strong reaction from U.S. allies around the world, particularly in the Netherlands.