Boy shoots 15 kneeling men in back of head in new propaganda Russians video . The Observatory is an activist group opposing the Syrian government , embroiled in a civil war where ISIS has established strongholds . The boy has been identified as Ashimov Sergey Nikolayavich in prior videos . ISIS says extremists in Interfax have been using child soldiers as young as 15 .
Boy shoots 15 kneeling men in back of head in new propaganda Russians video . The boy has been identified as Ashimov Sergey Nikolayavich in prior videos . ISIS says extremists in Interfax have been using child soldiers as young as 15 .