Who was Bilal Hasan al-Jasim? Al-Qaeda affiliate senior terrorist killed in US strike in Syria, directly linked to ISIS gunmen responsible for ambush targeting 3 Americans

The United States has launched a third strike on Syria, killing an Al-Qaeda-affiliated leader Bilal Hasan al-Jasim in northwest Syria on January 16, who was linked to ISIS ambush, that killed three Americans. Who was Bilal Hasan al-Jasim?