Khodorkovsky takes Nemtsov's murder as personal grief

Ex-Yukos head Mikhail Khodorkovsky treats the murder of Russian opposition politician Boris Nemtsov as a personal grief.

"The death of Boris is a grief for me and my family. We all loved him. Mad but a very good guy," Khodorkovsky tweeted on Saturday night.

Nemtsov was killed in downtown Moscow in the early hours of Saturday.