A top al-Qaeda terrorist has been killed in United States' airstrikes on Syria after an ISIS attack left three Americans dead. Bilal Hasan al-Jasim – one of the suspected masterminds of the horrifying terror attack– was an “experienced terrorist leader” plotting against the US, the Pentagon said. “The death of a terrorist operative linked to the deaths of three Americans demonstrates our resolve in pursuing terrorists who attack our forces,” Adm. Brad Cooper, commander of US Central Command,