They asked him three times and each time he gave a different answer. Yes, No , and maybe he looked at the window
So if witnesses give contradictory or inconsistent accounts then then they must be lying. Is that what you're saying?
Euins told a reporter the shooter was black, then told the FBI the shooter was white, then told the Warren Commission he didn't know if the shooter was black or white.
Brennan couldn't identify the shooter on 11/22, and then several days later decided that he could.
Givens told the FBI that he saw Oswald on the first floor at 11:50 and several months later decided that he saw Oswald on the 6th floor at 11:50.