In November 2015, a Russian teenager posted a selfie with the caption "nya bye" before committing suicide; her death was then discussed in internet forums and groups, becoming mixed with scare stories and folklore. Further suicides were added to the group stories. Soon after, Russian journalist Galina Mursaliyeva first wrote about these "death groups" in an article published in the Russian newspaper Novaya Gazeta in April 2016. The article described the "F57" groups on Russian social media site VK, that she claimed had incited 130 teenagers to commit suicide. Mursaliyeva's article was criticised at the time of its release for lacking credible data and balance, with the 130 cases of suicide cited being particularly problematic. The number was originally suggested by the father of one of the suicides, Sergey Pestov, who came to the figure 130 by using Russian media sources to look for child suicides he believed to be linked to online groups and then produced a brochure which implied that foreign intelligence operatives were responsible for encouraging Russian children to commit suicide. After an investigation by Evgeny Berg for Meduza, Mursaliyeva responded by saying in fact there had been at least 200.