It's our first look at the monster unmasked, wearing of all things, a Pittsburgh Pirates baseball cap. The team just released this statement: "It is absolutely sickening to everyone within the Pirates organization, to our great fans, to see this murderer wearing a Pirates cap."
In a photo he is a smiling 10-year-old schoolboy. That carefree kid is Jahadi John, now identified as Mohammed Emwazi, the world's most wanted terrorist.
A photo shows Jahadi John surrounded by happy fellow students at his West London primary school in 1997. He was the only Muslim in his class.
His eyes show an innocent schoolboy compared to the cold eyes behind the mask as the butcher of the terror group ISIS.
An animation comparing the two photos was made by animetrics, a New Hampshire company that specializes in facial recognition.
INSIDE EDITION's Steven Fabian spoke to Senior Facial Analyst Sean Doucette.
"In the young boy's photo, just looking at the photo, you can see those heavy lids sort of slanting on the corners. Sliding across through here, we have that same shape," Doucette explained.
He then ran a facial comparison with the adult college ID photo.
INSIDE EDITION asked, "How close are you to determining that this is in fact him?"
"I would say about 80%," he replied.
And we're also learning more about Jahadi John's childhood. In his school yearbook he lists his favorite color as blue and his favorite animal as a monkey. Ironically his favorite book was "How to Kill a Monster."
He clearly loved U.S. pop culture. He listed his favorite cartoon as "The Simpsons."
Asked what he wants to be at age 30, he wrote: "I will be in a football team and scoring a goal."
He first came to the world's attention with a shocking video last August when he beheaded the American journalist James Foley.
On September 2nd, his barbarity continued with the beheading of another American journalist, Steven Sotloff.
Eleven days later, on September 13th, he beheaded British aid worker David Haines, followed in October by another British hostage, Alan Henning. In November he beheaded American Peter Kassig.
And in January he stood with two Japanese hostages, threatening them if a ransom wasn't paid. On January 31st hostage Kenji Goto was beheaded.
The mother of his first victim, James Foley, had this reaction to the emerging portrait of her son's killer: "He did have the benefits of a comfortable upbringing and yet he is using his gifts and talents for such hatred," she said.
The eyes that once seemed so innocent that now belong to a monster.