Marcia Clark, the lead prosecutor in the 1995 O.J. Simpson trial, has spoken out since the news broke Friday that the Los Angeles Police Department found a knife on property Simpson once owned. More than anything, Clark is skeptical.

"I don't know whether to say it is truly evidence. None of us knows that yet —  it might be a hoax, it might be somebody who planted it and then just pretended to find it and gave it to the off-duty police officer, you don't know," Clark told Entertainment Tonight Online in an exclusive interview Friday. "But, of course, I'm glad the LAPD is taking it seriously and subjecting it to testing so we can find out."

If it is a legitimate piece of evidence, there’s a chance DNA could remain on the knife. "It's very possible — I mean they recover DNA on mummies in Egypt," Clark explained. "It's entirely possible that if there is some DNA to be recovered that it could be found, especially with today's technology, which is much more sensitive."

One key piece of evidence was the leather glove Simpson famously tried on in court. But Clark never wanted him to do that. “That was not my call. That was not my call. I did not want him to try on the evidence gloves. I never did,” she said during an interview with Dateline NBC’s Josh Mankiewicz for the special, “The People vs. O.J. Simpson: What the Jury Never Heard.”

While it didn’t look good for the prosecution, Clark said the glove wasn’t a deciding factor in the case. “'If that lost the case for us, we were never going to win anyway,’” she said, remebering what she told her colleague Chris Darden after the not guilty verdict was read.

“The People vs. O.J. Simpson: What the Jury Never Heard” will air on NBC Sunday, March 6, at 9 p.m. EST.

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