"I'm not aware of any role by the Justice Department," Carr stated.
The Metropolitan Police Department (MPD) in Washington, DC is in charge of the investigation into Lesin’s death. According to White House spokesman Josh Earnest, the FBI is also involved in the probe.
Earlier in March, Russian Prosecutor General Yuri Chaika sent a request to US Attorney General Loretta Lynch on provision of documents on the circumstances of Lesin’s death, according to an official in Russia’s prosecutor general's office.
Mikhail Lesin was found dead in a Washington, DC hotel on November 5, 2015. According to a coroner's report released in March, he died from blunt force trauma to his head. Earlier reports indicated that a heart attack could have been the cause of his death.