DNA taken from a chain used in an Occupy Wall Street protest has been linked to the unsolved murder of Sarah Fox, a 21-year-old Julliard student who was killed in New York City in May 2004. But just how significant will the development be in determining who murdered Sarah Fox in Inwood Hill Park?

The DNA was recovered from a chain used at a March protest in the East Flatbush section of Brooklyn and organized by the Occupy Wall Street movement. It matched DNA taken from Sarah Fox's CD player, which she had on her as she jogged in Manhattan's Inwood Hill Park before being murdered in May 2004, according to The New York Times.

The chain was used to keep emergency doors of the Beverly Road subway station open during a March 28 protest, the New York Daily News reported.

Finding out whose DNA is on both the chain and Sarah Fox's CD player may be hard to determine, and even if investigators discover the person whose DNA is on the chain and the CD player, that does not necessarily make that person Sarah Fox's killer, a law enforcement official told The Times.

Whether it's a friend or the bad guy, we have to find out, the official told the paper.

A source told the New York Post that the DNA from the chain is an important piece of evidence, but it's a long way from solving the case.

Fox went for a jog in Inwood Hill Park when she disappeared back on May 19, 2004. Six days later, her body, which was naked and showed signs of being strangled, was founded in a wooded section of the Manhattan park, according to the New York Post.

Police found the CD player during a search for evidence in the early days of the Sarah Fox case, while the DNA from the chain was discovered during a routine test of crime-scene evidence, a source told the Post.

Sarah Fox's family said they were waiting to hear from prosecutors about how substantial the new evidence is in finding out who killed the 21-year-old Julliard student.

We have always been confident the prosecutor's office will investigate all new evidence and will inform us when there's sufficient evidence to lead to an arrest, Sarah Fox's sister, Samantha Washlick, told the Post. It seems to me this could be so many people, referring to the number of persons the OWS sample could have come from. Until we hear something from the prosecutor's office, we don't put much significance in something that hasn't been substantiated by prosecutors.

The main suspect in Sarah Fox's murder had been Dimitry Sheinman, a 47-year-old handyman who claimed he was clairvoyant, although he was never charged, the Daily News reported.

Sheinman knew information about Fox's body that had not been revealed publicly, including that she had a broken rib and had a stick placed between her legs after she was killed, according to the Post.

Sheinman left New York for South Africa, but returned to the city last month. He went to the 34th Precinct in Manhattan to deliver an envelope containing the name of Sarah Fox's murderer, which he said came to him in a psychic vision, according to the Daily News.

Sarah Fox's family said Sheinman's behavior has saddened and hurt them, Washlick told the Post.

Dimitry Sheinman's statements that he has communicated with Sarah - well, he does not speak for Sarah, she told the paper. The only person that spoke for Sarah was Sarah. But that liberty was stolen from her.

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