A new Netflix docuseries has reignited interest in the murder of JonBenét Ramsey.

JonBenét Ramsey, 6, was found dead of homicide on December 26, 1996, in the basement of her home in Boulder, Colorado. Her killer has still not been identified.

There has been a lot of fascination with the case over the years and it has been mentioned as the latest series on Netflix Cold Case: Who Killed JonBenét Ramsey? is directed by Oscar nominee Joe Berlinger.

Although it begins with some background on the case, the docuseries quickly delves into the Ramseys as a family, including JonBenét’s mother, Patsy, a journalism graduate.

She met John Ramsey, JonBenét’s father, when she was 23 and he was 35. Despite the age difference, they fell in love and married. The couple moved from Atlanta, Georgia, to Boulder to help grow John’s lucrative business.

They welcomed son Burke in 1987 and JonBenét three years later, but tragedy soon struck the family when one of John’s older daughters from a previous marriage was killed in a car accident.

But the bad news didn’t stop there, as shortly afterwards Patsy was diagnosed with ovarian cancer and had to undergo a year of intensive chemotherapy.

Archival footage of Patsy showed how JonBenét had naturally understood that her mother was going through a difficult time and offered her care.

“She just knew … that she was a very sensitive child,” Patsy said.

The three-part docuseries showed how Patsy found a long ransom note on their stairs the morning after Christmas stating that their daughter had been kidnapped. Patsy’s panicked 911 call was played in the first episode, before JonBenét’s body was found in the basement.

As media fascination around the case of the murdered child star grew, police attention soon turned to John and Patsy as potential suspects.

They were eventually charged with child abuse resulting in death and complicity in the 1999 murder of JonBenét, but those charges were eventually dropped due to lack of evidence.

Patsy died in 2006 from her ovarian cancer after suffering a relapse in 2002 and the docuseries’ director believes she had nothing to do with her daughter’s death.

“It defies logic to think Patsy could have done this,” Berlinger told Today.com.

“Does anyone really think Patsy Ramsey had the presence of mind and ability to torture her daughter like that with a device that is quite difficult to make?” he said.

“Just the autopsy itself tells you that there is no way this could have been done by anyone other than a well-informed, deeply disturbed person who knew how to do this.”

Patsy and John both passed a polygraph test after hiring a private company to do so in 2000, and were asked if they had killed JonBenét, according to CBS.

“Neither John nor Patsy were attempting to cheat when they gave the answers,” polygraph examiner Ed Gelb told CBS at the time.