The US has confirmed that video showing the killing of reporter Steven Sotloff is authentic, but said they will not be intimidated by the barbarism for the militant group.
Sotloff was the second US journalist murdered by Islamic State militants within two weeks, and the video was confirmed as authentic by US National Security Council spokesperson Caitlin.
Speaking in Estonia, US President Barack Obama called the execution a “horrific act of violence” and warned:
“Whatever these murderers think they will achieve by killing innocent Americans like Steven, they have already failed.
“They have failed because, like people round the world, Americans are repulsed by their barbarism. We will not be intimidated. Their horrific acts only unite us as a country and stiffen our resolve.
“Those who make the mistake of harming Americans will learn that we will not forget, that our reach is long and that justice will be served.”
In the video titled “A Second Message To America”, Islamic State militants also threatened to kill British journalist David Cawthorne Haines, attempting to provoke a reaction from the UK.
In a speech to the House of Commons, Prime Minister David Cameron described Sotloff’s murder as “sickening and brutal” and said that he was shocked and angry that it appears to have been carried out by a British citizen.
Cameron said that the UK “will never give in to terrorism” and continued:
“A country like ours will not be cowed by these barbaric killers. If they think that we will weaken in the face of their threats – they are wrong. It will have the opposite effect – we will be more forthright in defence of the values, liberty under the rule of law, freedom, democracy, that we hold dear.”