On Sept. 28, 2016, the Joint Investigation Team released recordings of two apparent Russian officers, one clearly a commander, and sought public help in identifying them.
McClatchy’s partners recorded several recent phone calls with Tkachev asking him about his recent ceremonial appointment and later confirming biographical details.
Those recordings were compared with the recordings of intercepted calls of the unidentified purported Russian commander that the Joint Investigative Team posted on YouTube.
On those YouTube recordings, there’s one man to whom the others on the intercept are clearly deferential, as if under his command.
The reporting team gave the original audio recordings and those obtained in recent calls with Tkachev to the University of Colorado’s National Center for Media Forensics for analysis. The Center’s director, Catalin Grigoras, specializes in forensic authentication of recorded media.
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Source: McClatchy DC Bureau