Can 'The controller knew American 11 was hijacked; he was focused on searching for it after the aircraft disappeared at 8:46.' be viewed as neither a logical extension nor a contradiction of 'The controller searched for the aircraft he knew to be hijacked.'
The controller knew American 11 was hijacked; he was focused on searching for it after the aircraft disappeared at 8:46.###The controller searched for the aircraft he knew to be hijacked.