Među zatvorenima su Alexei "Traktor" Petrov, bivši bugarski komandos i tajni agent, koji je do prošle godine služio kao savjetnik bivšem šefu Državne agencije za nacionalnu sigurnost (DANS).
Among those locked up was Alexei "The Tractor" Petrov, a former Bulgarian commando and secret agent, who served as adviser to the former head of the State National Security Agency (DANS) until last year.