In the Mint Press article, Savic is quoted as admitting he was too young to take active part in the revolution beyond tearing down posters.
There’s no doubt that the U.S. played an important role in the uprising against Milošević—it was an open goal of the Clinton Administration to get him to step down. Whether all the details in the article are accurate I can’t say.
As for Savic, he’s also a COVID denialist: "One post describes the COVID19 pandemic as a “scam used to hurt the economy” and says “masks are the most stupid thing ever invented.”
His “grave concern about a socialist takeover of the country” demonstrates a profound and warped ignorance about socialism, our political parties, and system of government, and is very in keeping with the anti-socialist paranoia of Cuban emigrés from the early '60s.
His current assertion that his video had nothing to do with Jan. 6 is belied by own statement:
"In an emailed correspondence with MintPress , Savic said he reached out to the Oath Keepers after stumbling onto their Youtube video.“The name of the organization sounded cool. Their program and goals were traditionalists and I just asked if I can be useful,”
Savic is a right-wing clown, and he actively sought to aid the Jan. 6 fascists hoping to overturn the election.