“As much as ten”. LOL. Why the equivocation?
Ten or two, biased unfair lineups are unreliable. And only Markham saw a crime being committed.
Show us where Oswald asked for his jacket. That's what ten or two people—who were probably each in possession of at least one good eyeball—saw him wearing @Tippit, where colour perception was subjective and a guy dumping shells was, arguably, of more interest than a jacket and colour of same.