![‘Unforgivable’: Cameron vows justice for slain hostage Alan Henning ‘Unforgivable’: Cameron vows justice for slain hostage Alan Henning](https://mtic.us/wp-content/uploads/2014/10/29.si_-310x168.jpg)
Prime Minister David Cameron says members of the so-called Islamic State (IS) responsible for the murder of British hostage Alan Henning “will be hunted down and face justice.” The PM’s warning comes as militants threatened to murder a fifth hostage.
On Saturday Cameron met with security chiefs and the Foreign Office at his official country residence Chequers to discuss the murder of Henning, Downing Street said in a statement.