He died after a fall from his high-rise apartment building in Washington, D.C.; the medical examiner, after an autopsy, listed the manner of death as undetermined.

[6] Located on Savvinskaya Embankment [Wikidata], from its establishment around 2007 through much of the 2010s, it was one of the most fashionable clubs in Moscow, where oligarchs like Mikhail Prokhorov were known to party.

[6][7] "A table started at ₽100,000 (US$3,300), Cristal champagne flowed like a river, and Timati, VIA Gra and the best foreign DJs performed on stage", wrote one Russian newspaper[6] In February 2017, Rapoport's business partner and co-owner of Soho Rooms, Sergey Tkachenko, died from a fall from his apartment window.

In the footage shot by a passerby on the street below, he is seen clinging to the window frame while a woman attempts to pull him back from inside the room, before losing his grip and plunging to his death.

Tkachenko had left active management of Soho Rooms four years prior to embark on a DJ career, had just opened his own club, Mir, in the downtown Moscow, and was engaged to be married.

On January 4, 2017, Irina sold the Kalorama property to Tracy DC Real Estate, a corporation formed in 2016 controlled by Chilean billionaire and mining magnate Andronico Luksic Craig.

[18][19] The sale of the Kalorama mansion made headlines after it was revealed that Jared Kushner and Ivanka Trump would be Luksic's new tenants.

[20] In 2018, the investigative organization Bellingcat reported that Rapoport created the pen name David Jewberg, who was regularly quoted in Ukrainian media as a senior Pentagon analyst.

[22] He was wearing flip flops and a black hat; on his body were a cracked cell phone, headphones and $2,620 in cash, but no wallet.

"[23] Fiona Hill remained wary, telling Politico "Not every unexplained death in Russia is the KGB or the GRU bumping someone off.