71.   The fellow, whose identity was not known, barged in front of Woods and tripped him up.

72.   The laboratory does not know the identity of the students whose samples it tests.

73.   The police said they knew the identity of the suspect, but would not divulge his name.

74.   The online service said it did not know the identity of the commentator, but was able to show that the postings were made from an AOL account.

75.   The radio said Israeli police knew the identities of the Jews, and intended to question them Sunday, evidently in order not to violate the Sabbath.

76.   The receiving computer knows that the DVUs are authentic without knowing the identity of the payer.

77.   The self-congratulatory reverie ended abruptly when the identity of the victim became known.

78.   The seller may not even know my identity.

79.   The task of convicting the killer may be difficult, even though authorities believe they know the identity of the murderer.

80.   Their identity was known only to God.