Adnan is innocent, the police decided that the evidence of his murder was insufficient, and Jay was not trustworthy as a witness. There's also a new suspect in the case.

First, there was insufficient evidence to convict Adnan. Through Jay's testimony, the police pushed out the time of Hae's death, and Adnan claimed that he was in the library at the time, but there was no surveillance to prove it, thus deepening his suspicion as a criminal. This was later overturned when Asia, after learning of Adnan's charges, came forward to testify that she had seen Adnan in the library at 2:36 PM, which proved that Adnan did not have a time to commit the crime. Asia wrote to Adnan to warn him and offer to defend him as a witness, but no one contacted Asia after Adnan handed over the evidence to his own defense lawyer, which makes it suspicious.

In addition, the police found no DNA evidence of Adnan on Hae's body, and no soil from Leakin Park was found in Hae's car, making Jay's testimony questionable. Jay's testimony was initially unified with Adnan's cell phone signal, which led the police to believe him, but Jay's testimony keeps changing, and in Serial, Sarah research finds a document related to cell tower records, which raises questions about the reliability of the phone data. At the same time, Jay's inconsistent words made me think that he was intentionally framing Adnan, maybe he was intimidated by some people, maybe he was worried that Adnan would report him to the police for drug use, so he was eager to send Adnan to jail. In short, with such insufficient evidence, the testimony of an unreliable witness cannot be used to identify Adnan as the murderer.

Secondly, through Sarah's analysis, a new suspect has been found in the case, Adnan is actually just a scapegoat, and the phone call the police received to focus on Adnan as a suspect is only a means to get them off the hook. Enright's information pointed out that the police would not disclose the name of another suspect, and that the man was released from prison on January 1, 1999, he always had sex with the victim, he also had plenty of time and motive! Maybe he is the real killer!

Adnan is not guilty, although the case still makes some sense, but there is not enough evidence to prove his guilt, the only witness Jay looks suspicious, he may be framing Adnan. The new suspect is more suspicious, maybe he coerced Jay into perjury.

Who, What, When (serialpodcast.org)

Cell Tower Map (serialpodcast.org)