Casepin
Back to cases

Active case

Suspicious Russia-related deaths since 2022

UNSOLVED2022Russia (multiple locations)3 SOURCESUPDATED JUL 2026
Illustrative

Since the beginning of 2022, a series of deaths involving Russia-related businessmen and officials—many with ties to the energy sector—has drawn international attention due to circumstances described by various media outlets as suspicious. Reported patterns include individuals falling from windows or heights, apparent suicides, and unexplained accidents.

The Dutch broadcaster NOS described the pattern in June 2022 as "a grim series of Russian billionaires, many from the oil and gas industries, who have been found dead under unusual circumstances since early this year." NOS cited the case of Leonid Shulman, a 60-year-old transport chief for Gazprom, who was found dead on 30 January 2022 in the bathroom of his country house in the Leningrad region, with a suicide note beside his body. CNN Portugal similarly referred to a pattern of "millionaires with direct or indirect links to the Kremlin found dead in a mystery scenario since the beginning of the year," referencing an earlier USA Today investigation that had identified 38 Russian businessmen and oligarchs close to the Kremlin who died in mysterious or suspicious circumstances between 2014 and 2017. The phenomenon has been informally termed "sudden Russian death syndrome" or "sudden oligarch death syndrome."

Analysts are divided on interpretation. Some commentators have ruled out suicide or illness as explanations, while others, including Fiona Hill and Mark Galeotti, have expressed skepticism toward conspiracy theories, noting the deaths may not be centrally connected and could include genuine suicides as well as killings tied to competition among influential business factions rather than a coordinated Kremlin campaign. Context cited includes Russia's suicide rate, described as the third-highest in the world, and a previously noted 2020 trend of doctors treating COVID-19 patients falling from high windows. Commentators have also pointed to pressures on the Russian business community from the war in Ukraine and international sanctions as a possible contributing factor to suicide rates.

Family members of several deceased individuals have publicly disputed official findings and called for independent investigations. Igor Volobuyev, a former Gazprombank vice-chairman who left Russia after the 2022 invasion of Ukraine, said in an interview that he believed the reported murder-suicide involving his former colleague Vladislav Avayev had been staged. The son of Sergey Protosenya, former CEO of Novatek, stated that his father was not responsible for the deaths of his mother and sister in Lloret de Mar, Spain, asserting they were killed by someone else; Novatek issued a statement describing Protosenya as "a real family man" and called for a thorough Spanish investigation.

Businessman Bill Browder has stated his view that Vladimir Putin personally orders the killing or intimidation of business leaders who resist Kremlin influence, referencing the Russian term "mokroye delo" ("wet work") associated with coerced suicides. An investigative report by Novaya Gazeta suggested some deaths may relate to alleged large-scale accounting fraud among Gazprom executives allegedly funneling money to entities connected to the FSB and Russian military.

Key facts

Victims
Vladislav Avayev, Sergey Protosenya, Leonid Shulman
Date
2022
Location
Russia (multiple locations)
Case status
unsolved

Case timeline

  1. 2022-01-30

    Leonid Shulman, transport chief for Gazprom, found dead in the bathroom of his country house in the Leningrad region, with a suicide note nearby.

  2. 2022-06-03

    Dutch broadcaster NOS reports on a pattern of Russian billionaires, many from the oil and gas industries, found dead under unusual circumstances since early 2022.

  3. 2022-07-06

    CNN Portugal reports on millionaires with links to the Kremlin found dead in mysterious circumstances, referencing an earlier USA Today investigation covering 2014–2017 deaths.

Best coverage

No approved coverage links are attached yet.

People

  • Igor Volobuyev

    LAW ENFORCEMENT

    Former Gazprombank vice-chairman who left Russia in 2022 and joined the Freedom of Russia Legion; publicly questioned official narrative of Avayev's death in an interview.

  • Vladislav Avayev

    VICTIM

    Former Gazprombank official reported to have died along with his family in an incident described by officials as murder-suicide; a colleague publicly questioned this account.

  • Sergey Protosenya

    VICTIM

    Former CEO of Novatek, found dead along with his wife and daughter in Lloret de Mar, Spain; his son disputed the characterization of his father as the perpetrator.

  • Leonid Shulman

    VICTIM

    Transport chief for Gazprom, found dead on 30 January 2022 in an apparent suicide.

Roles reflect public records and court outcomes at the time of writing — supporting citations are on file under Sources.

Places

Common questions

What happened to the victim?
Since early 2022, a number of Russian businessmen and officials—many linked to the oil and gas sector—have died in falls, apparent suicides, and unexplained circumstances, prompting commentators and family members to question official explanations, though experts disagree on whether the deaths are connected.
Where did the crime happen?
Russia (multiple locations).
What is the current status of the case?
Status: unsolved.

Sources

  1. ENCYCLOPEDICSuspicious Russia-related deaths since 2022Wikipedia · 2026-07-07
  2. PRESSContemporaneous coverage — BBC NewsBBC News · 2026-07-07
  3. PRESSContemporaneous coverage — The GuardianThe Guardian · 2026-07-07

Record history

First published
JUL 10, 2026