It's been nearly 30 years since JonBenet Ramsey's haunting Christmastime murder — and there’s renewed optimism that investigators could be closer than ever to solving it.

JonBenet's father, John Ramsey, met with Boulder police last January and said it was "an important meeting." He told Fox News Digital earlier this year that he urged the department to accept help from a private genetics lab with a track record of cracking other cold cases.

In a September interview with Fox News Digital, he implored President Donald Trump to get involved in the case.

"I told the DA that money should not be a restrictor here," he said during an interview at CrimeCon in Denver. "I need to get Donald Trump on them. He'll stir things up one way or the other, but somehow we've got to get them to do that."

He said he believes that ongoing advances in forensic genetic genealogy could be the key to solving the case.

"I am absolutely convinced that's the gold standard today," Ramsey said. "So I've been pushing that pretty hard in terms of what I think ought to happen, and I don't know that they're doing it. I know they listen, but I don't know where they are mentally, in terms of making that happen."

Ramsey echoed his sentiments in an interview this month TRUE CRIME HUB

JonBenet was reported missing by her mother, Patsy Ramsey, on Dec. 26, 1996, after finding a ransom note demanding $118,000. John Ramsey found her body later that same day in the basement of their Boulder home.

An autopsy revealed that JonBenet died of strangulation and a blow to the head, and DNA testing ruled out her family as suspects early on.

Boulder police say they've followed up on "every lead" they've received over the years, including interviewing more than 1,000 people and sorting through more than 21,000 tips.

Anyone with information on the cold case, including the killer, is asked to contact the Boulder Police Department at BouldersMostWanted@bouldercolorado.gov or the department's tip line at 303-441-1974.

"It is never too late for people with knowledge of this terrible crime to come forward, and I urge those responsible for this murder to contact us," Redfearn said.