Aslan Avgazarovich Byutukayev (Chechen: Аслан Бютукаев), also known as Emir Khamzat and Abubakar (22 October 1974 – 20 January 2021), was a Chechen field commander in the Islamic State (IS) Wilayah al-Qawqaz, the commander of the Riyad-us Saliheen Brigade of Martyrs and a close associate of the deceased Caucasus Emirate leader Dokka Umarov.
[6] Shortly before the bombing, Dokka Umarov, Byutukayev and Magomed Yevloyev filmed a video, claiming responsibility for the attack.
[5] In March 2011, it was reported that Aslan Byutukayev had been killed in an airstrike by Russian Air Force in Ingushetia, along with the deputy leader of the Caucasus Emirate, Supyan Abdullayev.
[8] In July 2011, at a meeting of the Caucasus Emirate's Sharia Court, Umarov appointed Byutukayev to his deputy in the newly created Western Sector of Vilayat Nokhchicho.
[2][9] In May 2014, Byutukayev appeared in a video with a large number of field commanders of the Vilayat Nokhchicho, giving an oath of allegiance to the new head of the Caucasus Emirate, Aliaskhab Kebekov, who succeeded Dokka Umarov.