Russian opposition politician and former deputy Prime Minister Boris Nemtsov has been shot dead on a street in Moscow, according to Russian news agency Interfax.
British Intelligence officers have reportedly questioned former teachers of British man Mohammed Emwazi after he was unmasked as the so-called Islamic State terrorist 'Jihadi John'.
A former secondary school teacher of the 26-year-old, who she described as a "success story" for appearing to overcome an anger problem to achieve good grades, said staff at Quintin Kynaston Academy were quizzed by MI5 on Thursday.
The teacher, who remained anonymous, told BBC's Newsnight that Emwazi had received anger therapy to help him control his emotions.
An official statement from the school in north-west London, released by Westminster Council yesterday, said it was "shocked and sickened" that the former pupil was involved in terrorism.
The Russian Prime Minister Dmitry Medvedev has given his "deepest condolences" to the family and friends of Russian politician, Boris Nemstov, who was shot down in the street near the Kremlin in Moscow yesterday.
The Government of Russia's official English-language Twitter account said:
The UK will follow closely the investigation into the murder of a key Russian opposition politician who was gunned down near the Kremlin in Moscow, the Foreign Office has said.
Former deputy prime minister Boris Nemstov - a prominent critic of president Vladimir Putin and the conflict in Ukraine - was hit by four shots from a passing vehicle two days before a major opposition rally in the Russian capital.
A Foreign Office spokeswoman said:
Mr Nemtsov was reported to have warned in a recent interview that he believed Mr Putin would have him killed.
Russian mourners have reportedly begun to lay flowers near the spot where Russian politician Boris Nemstov was gunned down in Moscow.
Mr Nemstov was former deputy Prime Minister and a vocal opponent of Vladimir Putin.
Russian state news agency Ria Novosti have tweeted this image:
US President Barack Obama has said that his country condemns the brutal murder of Russian politician Boris Nemtsov.
The White House National Security Council tweeted that the US will call upon Russian authorities to conduct a "prompt and impartial" investigation into the murder.
Russian President Vladimir Putin has condemned the murder of opposition politician Boris Nemtsov and said it may have been a contract killing, according to his spokesman quoted by Russian news agencies.
Dmitry Peskov said the shooting on a street in Moscow could also be a "provocation" - the opposition is planning a big protest in Moscow on Sunday.
He said Mr Putin had been quickly informed of the killing and that the president had expressed his condolences and ordered the security agencies to investigate.
Russian opposition politician Boris Nemtsov was shot four times in the back according to an Interior Ministry spokeswoman quoted by Reuters news agency.
Interfax reports that seven shots were fired in total at Nemtsov from a passing car and police have opened a criminal case into the shooting.
Jeb Bush is the third in line in what is perhaps modern America's greatest political dynasty and he has already announced his desire to run for US President on the Republican ticket.
But some of the party's activists are worried that Mr Bush is not conservative enough and they have spoken to ITV News' International Affairs Editor Rageh Omaar about their concerns:
ITV News' Europe Editor James Mates says Boris Nemtsov was a leading reformer under former President Boris Yeltsin and was not tainted by corruption.
Prime Minister David Cameron today defended the security services over their handling of Islamic State militant Jihadi John.
The fighter, now known to be Kuwait-born Londoner Mohammed Emwazi, had been on the radar of MI5 for some time before he left for Syria in 2013.
ITV News UK editor Rohit Kachroo reports: