Is this Al-Qaeda’s next chief? Heir apparent ‘oversaw Black Hawk Down’ and helped carry out 9/11

The heir apparent to the al-Qaeda throne after the death tonight of Ayman al-Zawahri is a canny, military-trained operative with experience killing British and American soldiers.

Little is known about Saif al-Adel, who at around 60 years of age is one of the younger al-Qaeda bosses. 

The Egyptian ex-army officer was just 30 or so when he oversaw the infamous ‘Black Hawk Down’ operation in Mogadishu, Somalia, in which 19 American soldiers were killed and had their bodies dragged through the streets.

Seven more were slain when two…