Sarah learned about another case with striking similarities to Adnan’s: a key witness, cell records, young people, drugs. So she called up the defense attorney on that case looking for insight, and got much more than she bargained for.

Sarah weighs all the other circumstantial evidence prosecutors had against Adnan, including curious behavior, a dramatic note, and an unexplained mid-afternoon phone call.

Adnan once issued a challenge to Sarah: Recreate the state’s timeline of the murder by driving from Woodlawn High School to Best Buy in 21 minutes. It can’t be done, he said. So, we tried.

The detectives get a lead that opens the case up for them. They bring Jay in for questioning and he tells them the story of January 13th. But then, a few weeks later, his story changes.

Three weeks after Hae goes missing, a man discovers her body in the middle of a city forest. But his story is strange and his past is even stranger. Did he really just stumble on her by accident?

Friends say Adnan was sad when Hae dumped him, but not crazy sad - normal sad. The prosecutors say he was rage-filled and vengeful. Which is it?

A potential alibi surfaces … and then disappears again, at the worst possible time for Adnan’s case.