Oleg Tayakin was tracked down near Moscow after being named in investigation He slammed the door and refused to talk about claims he was part of an FSB plot FSB security service had allegedly been tracking Navalny for over three years Undercover teams included chemical weapons experts and secret agents There was media blackout over the bombshell claims in Moscow on Tuesday But Putin's 'goddaughter' Kseniya Sobchak called it 'absolutely brilliant work'