After a year of tracking the famed masked ISIS member known for his brutal treatment of hostages, the United States is fairly certain that "Jihadi John" has been killed by an airstrike. Shortly before midnight on November 12, "Jihadi John" was targeted three United States drones and two Hellfire missiles in Raqqa, Syria.

"Jihadi John" was identified as Mohammad Emwazi by The Washington Post earlier this year. Emwazi is a Kuwait-born British citizen who according to friends had been radicalized on a trip to Tanzania in 2009. Emazi was given the nickname "Jihadi John" after a group of four hostages nicknamed their four captives after the members of The Beatles.

Emwazi has taken part in numerous ISIS propaganda videos in which he is shown beheading Westerners as an act of revenge towards the countries he sees as suppressing his people. In his videos, Emwazi has also placed blame for his killings on the United States and President Obama.

In his 'Second Message to America,' Emwazi said, "I’m back, Obama, and I’m back because of your arrogant foreign policy toward the Islamic State because of your insistence in continuing your bombings in Muhassan, Albuomar and the Mosul Dam despite our serious warnings.

‘You, Obama, have yet to gain for your actions through yet another American Citizen for just as your missiles continue to strike our people, our knife will continue to strike the necks of your people.’

Emwazi is attributed to the deaths of over seven people. Identified victims include American journalists James Foley and Steven Sotloff, an American aid worker Abdul-Rahman Kassig, a Japanese journalist Kenji Goto, and British aid workers David Haines and Alan Henning.

When asked about the success of the mission, U.S. Army Col. Steven Warren said "We are reasonably certain that we killed the target that we intended to kill, which is Jihadi John... This guy was a human animal, and killing him is probably making the world a little bit better place."

British Prime Minister David Cameron said, “If this strike was successful... it will be a strike at the heart of ISIL.” Cameron also justified the strike as, “an act of self defense," claiming that it was, "the right thing to do.”

Cameron expressed his gratitude towards the United States for the attack.

Even Though Emwazi's death may seem like a victory for the fight against terrorism, the loved ones of his victims are not celebrating. American journalist Steven Sotloff's mother, Shirley Sotloff told NBC news, "If they got him great... It still doesn't bring my son back."