Considering the premise 'As it began, some of the hijackers-most likely Wail al Shehri and Waleed al Shehri, who were seated in row 2 in first class-stabbed the two unarmed flight attendants who would have been preparing for cabin service.', is 'The hijackers were also sitting in the first class cabin.' a statement that stands on its own?
As it began, some of the hijackers-most likely Wail al Shehri and Waleed al Shehri, who were seated in row 2 in first class-stabbed the two unarmed flight attendants who would have been preparing for cabin service.###The hijackers were also sitting in the first class cabin.