Marinova was the administrative director of TVN Television in Ruse. She presented a current affairs talk programme called Detector for Ruse's TVN television which had recently been relaunched. The first episode of the show on September 30 included with investigative journalists Dimitar Stoyanov and Attila Biro, about an investigation of alleged fraud with EU funds linked to big businessmen and politicians. The second episode that had been planned to air afterwards would have covered the Hitrino train derailment accident, which resulted in the death of 7 people and injured more than 29 others. According to Bulgarian investigative journalists, the same companies that had been involved with the alleged fraud with EU funds, had also won a public procurement deal in the Hitrino case. Among the suspects are Russian citizens, associated with the Bulgarian division of "Lukoil".