EXCLUSIVE: Defense Attorney Carl Douglas Says Former Client O.J. Simpson Isn't Losing 'A Second of Sleep' Over

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Carl Douglas, one of the defense attorneys in O.J. Simpson's infamous murder case, is speaking out after news broke that the Los Angeles Police Department is investigating a knife that was allegedly recovered on property once owned by his former client.

ET chatted with Douglas at his Los Angeles home on Friday, where he called the new discovery "ridiculous."

WATCH: OJ Simpson Says 'Every Participant Except Me' Got Rich Off Case in Recovered Interview

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"I woke up this morning to learn for the first time about this knife that was supposedly found at O.J.'s property and I thought it was ridiculous," he said. "I was surprised [that] the media frenzy 22 years after the death could still be so immediate, and it really enforced to me the awesome power of television and how it affects our lives so greatly even today."

Douglas told ET that despite the new findings, he doesn't think Simpson -- who is currently serving a 33-year sentence in a Nevada state prison after he was arrested in connection with a robbery in September 2007 -- should worry.

Simpson was acquitted by a jury in the 1994 murders of his ex-wife, Nicole Brown Simpson, and her friend Ron Goldman, and therefore cannot be retried on murder charges, Douglas explained.

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"I can't imagine O.J. Simpson losing a second of sleep over the discovery of this knife that was discovered for the first time at least years after the deaths," he said. "If you'll remember, O.J.'s property was scoured tooth and nail by the LAPD. They looked for everything from Bundy [Drive] to Rockingham [Avenue]. They took out the drains from the sinks in O.J.'s house looking for traces of blood. They scoured every inch of that property. If ever there was a metallic knife anywhere on that property, this department would have found it years and years ago."

"I can't imagine O.J. Simpson losing a second of sleep over the discovery of this knife that was discovered for the first time at least years after the deaths."

Carl Douglas, Former Defense Attorney for O.J. Simpson

"There is no way that O.J. Simpson could ever be charged again for the circumstances of those two deaths," he confirmed. "There's not a federal crime that was involved, so anyone to suggest that anything as a practical matter could ever come from this is sadly mistaken."

"For them to now consider spending taxpayer dollars to run a test on this supposed knife I think is really a waste of limited taxpayer resources," he continued.

ET also chatted with former prosecutor Marcia Clark on Friday, who revealed she remains skeptical on the matter, but is "glad the LAPD is taking it seriously."

WATCH: Marcia Clark on Knife Allegedly Found at OJ Simpson's Estate

"I really don't know what to think of it," Clark told ET. "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."

To hear more, watch the video below.

Additional reporting by Brendon Geoffrion.