Barack Obama has condemned the murder of Russian opposition politician Boris Nemtsov, who was shot to death yards from the Kremlin.
The US President paid tribute to a man he called a "tireless advocate for his country".
Our Washington Correspondent Simon Marks reports.
IN: "Amid rampant…."
OUT: "…in its outcome"
DUR: 33 seconds
(ALT)
IN: "Boris Nemtsov...."
OUT: "...this weekend"
DUR: 27 seconds