Mark Galeotti: Leaks and sneaks in the Nemtsov enquiry
After a first few days of chaos and contradiction, an increasingly clear and coherent picture of the investigation into the murder of Boris Nemtsov is emerging, with Chechens at its heart. The triggerman seems to be believed to be Zaur Dadaev (who confessed and then claimed that had been given under duress) and the implication is that he was charged with the task by Ruslan Geremeev, deputy commander of the "Sever" Battalion. Of course, the loudly unspoken question is whether Geremeev was in turn acting for Chechen leader - and his current protector - Ramzan Kadyrov, or one of his close allies such as his cousin Adam Delimkhanov.