Question

who is chief member of {ISIS} and his bio data

Answer 1

Abu Bakr al-Baghdadi,or Abu Du'a alternatively called Abu Bakr Al-Baghdadi Al-Husseini Al-Qurashi  and known to his supporters as Amir al-Mu'minin, Caliph Ibrahim  born as Ibrahim Awad Ibrahim al-Badri, has been proclaimed by his followers to be the Caliph of the Islamic State of Iraq and the Levant (ISIL), an Islamic extremist group in western Iraq and Syria, self-styled as the "Islamic State".