JonBenet Ramsey’s brother issues plea over clue he believes could finally solve her murder after almost 30 years

December will mark 30 years since JonBenet Ramsey was found dead in her own home but tragically, her family are still awaiting justice.

The six-year-old was reported missing on 26 December and was found in the basement of her own Colorado home seven hours later, with coroners later ruling that she had died from asphyxia by strangulation.

A handwritten ransom note was found in the home and police initially focused their investigations on the family themselves, and it wasn't until 2003 that DNA evidence proved sufficient to exonerate them.

Now, as we close in on the 30th anniversary of JonBenet's death, her older brother Burke has suggested that a fresh testing of previously unidentified DNA is the key to finding her killer.

In an interview with the Daily Mail, he said: "We need to find that match. It’s the best evidence we have. It was underneath her fingernails and it didn’t match any of us. It’s probably the person who did it, you know, and it’s the best chance we have to solve this.

"They need to send those samples to different labs again and keep testing. Find the match. That will go a long way to bringing justice. It’s been 30 years and enough is enough."

Investigations into her death captivated America (YouTube/CNN)

The DNA, which has only so far been attributed to an unknown male, was found on JonBenet's underwear and it seems clear that the owner of that DNA was the likely killer of the child beauty pageant star.

Burke added: "The DNA says we didn’t do it. I know none of my family did it.

"I didn’t do it. You know, it’s like, stop. There was this energy looking at the family, but the DNA is sitting right there.

"I’m an open book. I’ve told everybody everything I know. And if I can help in any way, I’m all ears.

"It’s the most tragic, personal, awful thing to happen in my life… that anybody could imagine happening to them,’ he said.

"And it’s tough to have it come up every ten years or so. It just brings all that pain back, you know. But I want this solved. So if this helps get this solved then OK, that’s fine."

Burke Ramsey has spoken out about his sister's murder (CBS)

Meanwhile, Burke's father John has also previously stressed that police didn't give enough attention to their claims that an intruder was to blame, especially when another masked man entered another home in the city of Boulder a few months after JonBenet's death, where he also attacked a young girl before escaping.

The tragedy affecting the Ramsey family will be documented in a new Netflix drama series, which is set to premiere on 10 December, although the family are less than happy about it airing, suggesting in a previous interview that they were 'never consulted'.