Newsbeat's week in pictures: Wednesday 20 August

20 August 2014 Last updated at 06:29

Islamic State has released a video they say shows the beheading of US journalist James Foley.
James Foley
The Islamic State militant group has released a video they say shows the beheading of US journalist James Foley, who was seized in Syria in 2012.
Nelly walking with protestors
Nelly has joined people protesting in Ferguson, Missouri over the shooting of Michael Brown.
Protestor holding a gas canister
Police have fired tear gas and issued warnings for crowds to disperse ahead of the second night of curfew in Ferguson, Missouri. There has been tension for more than week, since US police shot dead a black teenager, Michael Brown.
Riot police in Ferguson, Missouri use tear gas to try and disperse protestors after a fourth night of demonstrations over the fatal shooting of an unarmed black teenager, Michael Brown.
Riot police in Ferguson fired several rounds of tear gas to disperse protesters on the fourth night of demonstrations over the fatal shooting last weekend of an unarmed black teenager Michael Brown, 18, by a police officer.
People photograph mementos which have been left on the steps of a house in San Francisco, which was used in the filming of the Robin Williams film Mrs. Doubtfire
People have been leaving flowers and candles on the steps of the house in San Francisco used in the Robin Williams film Mrs. Doubtfire following the actor's death.
Robin Williams
Robin Williams has been found dead, aged 63, in an apparent suicide, California police say. He was well-known as both a comedian and an actor and starred in films including Mrs Doubtfire, Good Will Hunting and Aladdin.
Iraqi soldiers and volunteers from the Abbas Unit fan out into a field in Jurf al Sakhr, 60 kilometres southwest of Baghdad
Ex-army chief Lord Dannatt says UK troops might be needed on the ground in Iraq to help support US military air strikes. The UK government says it is supplying humanitarian aid but will not be sending in troops to Iraq.
Barack Obama
US President Barack Obama has launched air strikes on Islamic militants in northern Iraq to prevent the slaughter of religious minorities.
Oscar Pistorius
Oscar Pistorius has been accused of being a "deceitful witness" who dropped the "baton of truth", at the start of closing arguments in his trial for murder.
Plane being escorted
A man has been sectioned under the mental health act after being arrested on suspicion of making a hoax bomb threat. It's after RAF jets escorted a passenger plane into Manchester Airport on Tuesday.