(S (S (S (BASENP (NNS Authorities)) (VP (VP (MD could) (RB not)) (VP (VB confirm) (BASENP (DT any) (NNS injuries) (CC or) (NNS fatalities))))) (CONJP (COMMA ,) (CC but)) (S (BASENP (DT the) (JJ missing) (NN man) (NN formation)) (VP (VBD was) (VP (VP (VBN performed) (PP (IN in) (BASENP (DT a) (NN flyby)))) (PP (ADVP (RB shortly)) (PP (IN after) (BASENP (DT the) (NN crash)))))))) (PERIOD .))