A shocking story about a knife allegedly being found at O.J. Simpson’s former estate lit up the Internet on Friday and now former prosecutor in his murder trial, Marcia Clark, is offering her thoughts about the news.

ET Online spoke to Clark after the story broke to see what she had to say.

“I really don’t know what to think of it,” Clark admits. “I can’t believe someone gave a police officer what appears to be, could be, important evidence in a case – even if it is closed – and takes it home. I don’t know what to say about that except I can’t believe it, but it’s apparently what happened.”

Clark is referring to the TMZ story about a construction worker who allegedly found the knife and told a Los Angeles Police Department officer about it. That officer, who was not on duty at the time, then apparently took the knife home and kept it for years.

The LAPD has confirmed that it is conducting an investigation into this matter.

“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 said. “But, of course, I’m glad the LAPD is taking it seriously and subjecting it to testing so we can find out.”

O.J. Simpson was the sole suspect in the murders of his ex-wife Nicole Brown Simpson and her friend Ronald Goldman. He was acquitted of both murders on October 3, 1995 and therefore cannot be retried.

The former NFL star is currently serving a 33-year prison sentence and will be eligible for parole in 2017.