Almost a year after the curious death of Lesin in the Washington hotel, authorities announced Friday, Oct. 28, 2016, that he died accidentally from numerous bodily injuries after "days of excessive consumption of alcohol".
"Acute ethanol intoxication" was a contributory cause of Mikhail Lesin's death on 5 November a year ago, said the US Attorney for District of Columbia.
But federal prosecutors now say Mikhail Lesin's death was an accident caused in part by excessive drinking.
Lesin - the co-founder of Russia Today, the state-owned English language television channel known now as RT - was found dead in his Washington, DC hotel room in November 2015.
A day after the autopsy details were released in March, foreign ministry spokeswoman Maria Zakharova said the Russian Embassy made multiple requests for information about the investigation, but received no substantive material.
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It was originally reported in Russian media as the result of a heart attack, though the medical examiner said earlier this year that it was from blunt force trauma.
His death has been shrouded in mystery and the subject of widespread speculation about what the former powerful Kremlin official was doing in Washington at the time.
"Based on evidence gathered during the investigation, Mr. Lesin, 57, entered his room at the Dupont Circle Hotel for the final time at about 10:48 a.m., on Wednesday, November 4, 2015, after days of excessive consumption of alcohol".
The BBC reported that even preliminary USA findings suggested foul play and that his extensive injuries could be explained "by falls" following days of heavy drinking.
The medical examiner determined Lesin died as a result of blunt force injuries to his head, with contributing causes being blunt force injuries of the neck, torso, upper extremities and lower extremities, which were induced by falls, with acute ethanol intoxication. He also was a senior executive at Gazprom-Media, Russia's largest media holding company, from 2013 to 2014.