Look man, calm down. The operatives are gone, you have a lead on where the real guy is, you know some of his methods of travel and places he frequents. Just. Take. My. Advice. And kill him before he does any more damage.
Yeah, you know sooo much about him yet you can't catch him with your chink agents.
You never found out about the agents because they were told to follow him and gather information. They were never at liberty to apprehend or kill him because your authorities would find out about my spy network. He is often surrounded by witnesses.