The perpetrator of the first blast has been identified as a man who had served a prison term for abetting the insurgency and then joined the militants' ranks after his release. He reportedly travelled to the entrance of the base by taxi and waited for approximately 30 minutes, blowing himself up only when a group of military personnel approached. It remains unclear whether the second bomb was detonated by remote control or by a second militant; no fragments of a second body have been reported recovered.
Visiting the site of the blast later the same day, Chechen Republic head Ramzan Kadyrov said the attack might have been the work of the Gakayev brothers, Khusein and Muslim. Khusein Gakayev was one of four senior commanders who split with self-styled Caucasus Emirate head Doku Umarov in August 2010. Senior fighters elected Khusein Gakayev their new leader two months later.
Fighters subordinate to Khusein Gakayev were responsible for the attacks on August 31, 2010, on Kadyrov's home village of Khosi-Yurt (Tsentoroi) and on the Chechen parliament building six weeks later.
The modus operandi of the August 6 bombing was similar to an attack staged by three militants in late August 2011 in which up to 30 security personnel died. Gakayev reaffirmed his loyalty to Umarov a year ago.
Kadyrov has issued orders to security personnel to hunt day and night for the Gakayev brothers. That injunction elicited derisive comments from bloggers who questioned the efficiency of the security forces subordinate to Kadyrov. Ten years ago, observers similarly raised the question how renegade Chechen field commander Shamil Basayev managed to evade capture given the huge number of military and security personnel engaged in trying to track him down.
August 6 is the anniversary of the recapture of Grozny in 1996 by Chechen fighters under the command of Aslan Maskhadov. It is not known whether the Gakayev brothers, now 42 and 39, took part in that operation.