Who Is Konstantin Kilimnik? Mueller Charges Russian Accused of Intelligence Ties and Work With Paul Manafort

The special counsel investigating Russia's interference in the 2016 election filed a superseding indictment Friday against a Russian suspected of ties to his country's intelligence services.

Konstantin Kilimnik was charged by special counsel Robert Mueller of helping former Trump campaign manager Paul Manafort and his former business associate, Rick Gates, illegally lobby in the United States on behalf of a pro-Russian political party in Ukraine, according to the federal indictment filed in the District of Columbia.

New charges were also levied against Manafort, including obstruction of justice and conspiracy to obstruct justice.

A previous filing against Manafort on June 4 had accused the longtime Washington lobbyist of attempting to tamper with witness testimony, and was believed to have referred to Kilimnik as "Person A."

Friday's indictment named Kilimnik as an employee of the international arm of Manafort's lobbying firm, DMP International, or DMI. Kilimnik, according to the filing, "oversaw" DMI's office in Kiev, Ukraine's capital.

Kilimnik, also a political consultant, allegedly helped Manafort and Gates in their effort to elect Party of Regions candidate Viktor Yanukovych to Ukraine's presidency and to help him lobby the U.S between 2006 and 2014.

"Manafort, with the assistance of Gates, Kilimnik, and others engaged in a multi-million dollar lobbying campaign in the United States at the direction of Yanukovych, the Party of Regions, and the Government of Ukraine," the filing states. "Manafort did so without registering and providing the disclosures required by law."

Kilimnik was identified as "Person A" in a previous filing by Mueller's office and served as a "fixer" for Manafort while he worked for his firm, The New York Times reported in April.

Kilimnik, 47 and known for his small stature, was formerly a Russian military interpreter, according to the Times, and worked at a nonprofit group called International Republican Institute, in Moscow.

Ukraine started investigating Kilimnik's supposed ties to Russia's intelligence services in August 2016. No charges were filed, but the Ukrainian who called for the investigation seemed sure Kilimnik had links to Russia.

"He was a student of a military school in Russia," lawmaker Volodymyr Ariev told the Times. "Everybody in the former Soviet Union knows what that means. They produce professional spies."

Manafort continues to fight charges of laundering millions of dollars and was recently accused of trying to fix witness testimony. His bail could be revoked and he could be sent to jail until trial. Gates has already pleaded guilty and is cooperating with Mueller's investigation.