I have. Since about a couple of weeks before Sergei died until now, I or my colleagues have received eight very explicit threats of death or violence as a result of all this stuff. It's obviously very troubling.
But one thing I can say is that four days before he died, while he was incarcerated and in a much more dangerous situation than I'm in, Sergei provided testimony and more detailed statements about the crime and the people involved, even naming further names. If he was brave enough to do that from jail and he died as a result, it's my duty to him to not be scared, and to be brave, and to do what I'm doing right now.
As unpleasant as it is to get death threats, it's even more unpleasant to think about what happened to Sergei. I'm going to continue to stand up for him, and his name, and the justice he deserves.