ISIS-K released a chilling video of the attack from inside with shouts of "Allah is great". The terrorist organization published it this Saturday, through its news agency on Telegram.
Four jihadists are seen shooting the victims in the shooting that left 133 dead. So far there are 11 people detained, among whom are the four suspects of having carried out the attack at the Crocus City Hall in Moscow. U.S. officials confirmed to NBC News that they had been gathering intelligence for months that ISIS could stage a mass casualty attack in Russia.