Kadiza Sultana, 17, fled Bethnal Green last February with two of her classmates, Shamima Begum and Amira Abase.
The trio headed for the bloodthirsty regime’s stronghold in Raqqa, Syria.
Kadiza is thought to have been killed in an airstrike earlier this year, according to ITV, after the city was struck by a bomb dropped from a Russian plane.
It is believed at the time she was plotting her escape from the evil jihadis after becoming disillusioned with life among the terrorists.
Her two friends, who were 15 at the time they left, are thought to still be in the city.