Alexander Litvinenko, an author of two books about the events, was assassinated in London.[1] In a book he co-authored with Yuri Felshtinsky, Mr. Litvinenko claimed that FSB was behind the bombings.[2]
Journalists
Artyom Borovik investigated the Moscow apartment bombings and prepared a series of publications about them, according to Grigory Yavlinsky.[3] He received numerous death threats and died in an airplane crash in March 2000.[4]
Sergei Yushenkov, a Russian lawmaker and vice-chairmen of unofficial Sergei Kovalev commission created to investigate the bombings was assassinated in April 2003
Otto Lacis, another member of Kovalev commission, was assaulted in November 2003.[12] He died two years later after a car accident.[13]
Members of the FSB
FSB General German Ugryumov who, at the time during which he was allegedly supervising the 1999 attacks; was a key figure in the FSB's counterterrorism section. Is alleged by some to have committed suicide following his receiving of a package the day prior to his death on May 31, 2001. This package may have contained kompromat from the FSB, alongside a confirmed notification that he was being promoted to Admiral.[14][15][16]
Maxim Lazovsky, an FSB officer who was allegedly involved in staging of bombings in Moscow in 1994.
Vladimir Romanovich, an FSB officer who was identified by Mikhail Trepashkin as the man who rented basement of one of the bombed buildings, died in a hit and run accident in Cyprus[17]
Khakim Abayev, an ethnic Karachai, was killed by FSB special forces in May 2004 in Ingushetia[21]
Ravil Akhmyarov,[22] an ethnic Tatar, was killed in Chechnya in 1999-2000[20]
Timur Batchayev, an ethnic Karachai,[23] was killed in Georgia in the clash with police during which Krymshakhalov was arrested[20]
Zaur Batchayev, an ethnic Karachai,[24] was killed in Chechnya in 1999-2000[20]
People who disappeared
Achemez Gochiyayev who rented basements of the bombed buildings under request from Dyshenkov and later reported about other mined buildings to police, according to his tape that Chechen middle men passed to Sergei Kovalev Commission.
Three FSB agents (two men and a woman) who conducted the "training exercise" in the city of Ryazan. Their identities and fate remains unknown although their photos were advertised on Russian television.