Story highlights Jihadi John is also known as Mohammed Emwazi and Abu Muharib al-Muhajir

He was featured in a series of hostage beheading videos

The confirmation in Dabiq magazine was the first time ISIS addressed the militant's death

(CNN) ISIS has confirmed the death of "Jihadi John" -- aka Mohammed Emwazi, aka Abu Muharib al-Muhajir -- in the latest issue of its Dabiq magazine.

U.S. officials said in November that they were reasonably certain the English-speaking voice of the terror group had been killed in a targeted drone strike in Raqqa, Syria, ISIS' de facto capital.

The confirmation in Dabiq was the first time ISIS addressed the militant's death. The magazine told the story of his journey into ISIS in a two-page article and reported that he was killed instantly by the drone strike.

As the masked face of ISIS, Jihadi John was featured in a series of hostage videos, dressed head-to-toe in black -- his eyes and voice his lone revealing features -- and holding a knife.

Earlier this month, a British-sounding militant appeared in a chilling propaganda video from ISIS. The speaker's accent and dress brought to mind Jihadi John, and the latter's absence lent credence to Western intelligence agencies' belief that he was indeed dead.

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