An interesting perspective on Nemtsov's murder, via TPM:
Irina Khakamada, a prominent opposition figure who co-founded a liberal party with Nemtsov, blamed a climate of intimidation and warned that the murder could herald a dangerous destabilization.
"It's a provocation that is clearly not in Putin's interests, it's aimed at rocking the situation," she said in remarks carried by RIA Novosti news agency.