...As another of the corroborating experts for its report, CBS and Rather presented an on-air interview with Marcel B. Matley, a San Francisco document examiner. Rather said Matley had corroborated the four Killian memos. But in an interview with The Times, the analyst said he had only judged a May 4, 1972, memo — in which Killian ordered Bush to take his physical — to be authentic. He said he did not form a judgment on the three other disputed memos because they only included Killian's initials and he did not have validated samples of the officer's initials to use...