The creepy masked man holding a knife to the throat of many a western hostage kneeling before him — clad in an orange jumpsuit and only moments away from being beheaded — is apparently no longer a mystery.

Enter one Mohammed Emwazi as “Jihadi John”, a maniacal bloke with a London accent whose barbarism and threats shocked much of the world and generated promises by several governments to bring him to the dock.

Below are pics of “young Mo”, his nickname, with classmates at a Church of England-run primary school, according to Sky News.

Then, there’s the 26-year-old Kuwaiti-born “Mo” with a Pittsburgh Pirates cap.

Before he wasn’t executing innocent and bound hostages, the evil west London-raised lad played football with his mates and earned a computer programming degree from a UK university.

He’s reportedly a ManU fan too, while his favorite TV show was the Simpsons and he liked stuff animals, especially monkeys.

Only the future will tell if Mo sees the last thing that bin Laden saw before his death…