Toxic colleagues. A story about the institutions that killed Alexei Navalny Katya Arenina, April 13, 2026 Alexei Navalny was poisoned with the exotic poison epibatidine. In Russia, it was studied by two institutes - the Signal scientific center, and secretly, and GosNIIOKhT. Coincidentally, both are also associated with the Novichok poison. In total, five institutes were involved in the chain of poison developers. How are they all connected? What is the difference between them?