What’s the story with the investigation into St. Petersburg’s 2017 subway bombing? Defendants say they were abducted and tortured at a ‘secret FSB prison’

More than two years have passed since a terrorist attack in the St. Petersburg subway. The day before the second anniversary, the trial against the alleged perpetrators got underway. There are 11 suspects in the case, all of whom maintain their innocence. Some of the defendants also say they were tortured at a “secret FSB prison.” Meduza special correspondent Pavel Merzlikin explains how the case began, the allegations against federal agents, and how some have defended the government’s interrogation methods.