Russian investigators believe that the February 6 explosion in the Moscow metro, and another one in a suburban train in Yessentuki (southern Russia) in late 2003 "are links of the same terrorist chain." "The techniques used are identical: in both cases, the terrorists used powerful bombs they planted in train cars," a source close to the investigation team told RIA Novosti.
The source also confirmed that the attackers used bulk explosive, which the suicide bomber carried on him/her or in a bag. The weight of the explosive was preliminarily estimated at 5 kilos.
The Moscow blast killed 39 people; the Yessentuki attack, 47.
If one assumes that the two people who gave the interview indeed work for Russian special services, then they acted very unprofessionally and risky
Representatives of the Russian Defence Ministry said that the missile that shot down the passenger Boeing 777 aircraft over the Donbass on July 17, 2014, was manufactured in 1986