Keep in mind that all legal outcomes depend on the facts and the law. I have not attempted to exhaustively research facts that are publicly available, and I certainly do not have access to all facts and evidence presently known to law enforcement.
The NYT article states "He faces an arrest warrant in Florida —
its records sealed by court order — on 21 felony charges of extortion and wiretapping . . ." It's hard to say what the evidence is in the Florida case.
According to this article he likely committed a federal crime by impersonating an FBI official:
>>>Dougan was not some hobbyist setting up a phony website from his basement somewhere. This was the same person who in March had targeted my boss by calling him and impersonating an FBI official — a federal crime that can carry up to three years in prison — and who had become well known to the FBI as a Russian operative who has produced some of the Kremlin’s most significant disinformation campaigns.<<<
John Mark Dougan fled to Moscow and orchestrated a global disinformation campaign featuring 167 websites and more than a dozen propaganda films.
www.newsguardtech.com
It appears to me that the arrest warrant in Florida was based on state criminal charges (I have not looked at the court records). Also, it's not clear to me how strong the evidence would be if he were to be charged with a federal crime for impersonating an FBI official. We're getting into very thin air in terms of the facts.
Offhand, I'm not sure what the requirements are for an Interpol warrant. To be honest, I'm not willing to spend hours researching the requirements. My best guess (emphasis on guess) is that one alleged federal crime, and the Florida case are not sufficient. I might be wrong, however, this is just a guess.
In terms of "freezing assets" I will assume for purposes of discussion that you are referring to asset forfeiture. This gets complicated because there are both federal and state forfeiture laws, and asset forfeiture comes in three "flavors," namely criminal civil, and administrative, resulting in up to six possible grounds for forfeiture.
Asset forfeiture is a powerful tool used by law enforcement agencies, including the FBI, against criminals and criminal organizations to deprive them of their ill-gotten gains through seizure of these assets.
www.fbi.gov
In terms of whether or not any of the six possible forfeiture laws would apply to the jack*ss in question, there doesn't seem to be any way to know with any degree of certainty because we don't know all of the facts.
Having said that, here's my best guess (again, emphasis on guess). My rudimentary understanding is that civil forfeiture is typically easier to enforce. However, my understanding (this is not my area of practice, so my understanding is far from complete) is that it requires some showing that the assets in question were used in committing an alleged crime, or the assets were gained as a result of the alleged crime, even though a criminal conviction is not required.
Do we know if any of Mr. Jack*ss's assets fall into one of these categories? The short answer is "no." Speculating, he might have used a computer to commit the Florida crimes. If he owned a house in Florida and this was his base of operations, it could conceivably fall into one of these categories, but it seems like a stretch. He may have not owned a house there, and even if he did he might have sold it and moved any gains offshore. This is all just speculation.
The potential federal crime occurred after he moved to Russia so it seems unlikely that any assets he might still have in the U.S. would fall into one of the categories. But, again, this is all guesswork.
As a practical matter, it seems unlikely that Mr. Jack*ss has any assets in the U.S. that are worth seizing. From the NYT article:
>>>Mr. Dougan’s emergence as a weapon of the Kremlin’s propaganda war follows a troubled life in the United States
that included home foreclosures and bankruptcy.<<<
But, there's still hope. He might do something that torques off the powers at be in Russia, and find himself falling from a balcony of a tall building.
As long as we're guessing about future outcomes, we might as well come up with one that has a happy ending.
