One last "eyewitness" stayed silent for 22 years
Toward the end of Episode 5, Levasseur and Mohandie are abruptly called to the garage for an emergency meeting. Dear has dug up an eyewitness who claims to have seen everything that night, including Jason in the white Bronco with Simpson. His name is Michael Martin, and he has been silent for 22 years for absolutely no good reason.
Levasseur and Mohandie treat this guy with the appropriate amount of skepticism for about a minute. But then he agrees to take a polygraph test. He passes, and thus must be taken seriously. The team makes no effort to corroborate Martin’s story.
So here’s the thing about polygraph tests: they are not, and never have been, reliable measures of truth. If you’re a really good liar, you might pass. And if you’re a really nervous truth-teller, you might fail. No responsible investigator would ever treat a polygraph as the final word. Thankfully, Lange, a.k.a. the man who has had it, returns to shoot death glares and inform the team of this fact.