U.S. investigators found evidence files deleted even after May 3 . But the theory is disappearance was result of accident . More could n't be learned about the nature of the deletions , and who made them . U.S. has a profile of pilot and co - pilot .
U.S. investigators found evidence files deleted even after May 3 . But the theory is disappearance was result of accident . U.S. has a profile of pilot and co - pilot .