Jihadi John's deadly vow to return to Britain
The Mail (media publication) received the first-ever unmasked video of 'Jihadi John'.
In the 17 second long video, the fanatic yields a knife and vows to continue beheading people.
He further gives a sinister warning to return to Britain with ISIS's self styled leader Abu Bakr al-Baghdadi.
The footage was allegedly shot two months ago in south-east Syria.
Aug 2014: The new face of ISIS extremists
Jihadi John made headlines when he appeared in an ISIS beheading video in August 2014, dressed in black and masked, barring his eyes.
He is wanted for the ghastly beheadings of journalists and aid workers Stephen Sotloff, James Foley, David Haines, Alan Henning and Peter Kassig.
His identity was a secret, and his accent distinguishably English.
Fact: A nickname derived from John Lennon's name
Nicknamed 'John' because of his association with a terror cell named 'Beatles', where he took the cover identity of John Lennon. Ringo Starr of Beatles fame expressed his disgust with 'Jihadi John' for using the Beatles name for such ghastly purposes.
3 Feb 2015: Jihadi John suspected to be dead by experts
Terror experts after examining the footage of the beheading of Japanese hostage Kenji Goto, believed that the executioner was not Jihadi John.
Terrorism expert Professor Peter Neumann said that the executioner had changed movements and was of a different stature.
This has led to the conjecture that 'Jihadi John' was most likely dead and was replaced because he had become a strong "propaganda figure".
26 Feb 2015: 'Jihadi John' identified to be a Londoner
The masked ISIS executioner who has become infamous by the name 'Jihadi John' was revealed to be a Brit- Mohammed Emwazi.
He was recognized by a number of people, one being his close friend as well as a few of his associates.
It was revealed that he was born in Kuwait and was a graduate from University of Westminster; he is a west Londoner.
Fact: Jihadi John- an ace salesman in Kuwait
Mohammed Emwazi notorious as Jihadi John was termed as the 'The best employee we ever had' by his former boss in Kuwait and as being 'calm and decent'.
31 Jul 2015: Jihadi John not dead: U.S. government
The U.S. government divulged the information that recent information had revealed that 'Jihadi John' was alive and hiding around the ISIS capital of Raqqa, Syria.
Though the officials refused to specify how they obtained the information, the lead was important in order to track and target the notorious killer.
Other than John, US military is in pursuit of ISIS leader Abu Bakr al Baghdadi.
Fact: A bounty of $10 million for deadly ISIS killers
The US Senate passed a bill approving a $10 million bounty for information on the killers of James Foley and Steven Sotloff, suspected to be killed by 'Jihadi John'.
25 Aug 2015: Jihadi John's deadly vow to return to Britain
14 Nov 2015: Jihadi John 'most likely' dead
U.S. Army Col. Steven Warren announced that a drone hit on 13 November had killed all jihadis in a targeted vehicle, and those hit most likely included Mohammed Emwazi or Jihadi John.
The United States had been tracking Emwazi's movements closely.
Three drones had tailed the vehicle he was in, which also had another person and 2 Hellfire missiles were fired at it.
5 Jan 2016: Cameron: 'New Jihadi John' is IS' desperate attempt
A video that showed a man dubbed as the "New Jehadi John", speaking with a London accent was released by IS on 3 January 2015.
The video showed 5 men, alleged to be "British spies", being shot dead by the new terrorist.
British PM David Cameron, however, dismissed the video saying that it was a desperate attempt from an organisation that was 'losing territory'.
20 Jan 2016: ISIS confirms death of Jihadi John
ISIS's online magazine Dabiq, confirmed that the militant known as Jihadi John, died in a drone strike in November.
The group published an obituary for Jihadi John, whose real name was Mohammed Emwazi.
The group stated that he died on 12 November "as the car he was in was targeted in a strike by an unmanned drone in the city of Raqqa."
9 Feb 2016: Jihadi John's 'Beatles' terror gang revealed
British confederates of dead ISIS terrorist killer Mohammed Emwazi or "Jihadi John" were unmasked by the police.
The so-called "Beatles" terror band consisted of Aine Davis (Paul) and Alexe Kotey (Ringo) but the identity of the fourth (George) remains unknown.
While Davis is in custody in Turkey, the other two are still missing.
Together, the group is liable for beheading almost 27 Western captives.