Sep 03, 2016 06:48 AM EDT By Sarah T., UniversityHerald Reporter

While, the death anniversary of the young beauty queen, JonBenet Ramsey is about to approach in less than a month, Boulder Police releases a video of the statement of their department. In the video, they stated that the department remains focused on the investigation despite 20 years have been passed.

JonBenet Ramsey's murder case is one of the controversial cases in America as of now, the Boulder police haven't arrested the real killer. Aside from that, JonBenet's parents, John Bennett Ramsey, and Patsy Ramsey and her sibling, Burke, were accused of killing her.

On Thursday, Sept. 1, Boulder, Colorado Police Chief Greg Testa released a video stating that the department remains "focused" on the investigation of the murder case of the young beauty queen.

"We have not and will not give up," Testa said. "We remain focused on this investigation and finding justice for JonBenet," he added.

JonBenet was only 6-year-old when she was murdered, while his brother, Burke, was only nine. JonBenet was found dead in the basement of her family house in Boulder, Colorado, after an hour her parents found a ransom note.

There were no evidences that could prove that the couple, John and Patsy, were guilty. In an audio video on Youtube, Patsy called 911 to report that her daughter was missing, and a ransom note, Fox reported.

In August, A&E announced its new show, a documentary series, "The Killing of JonBenét: The Truth Uncovered." In this show, JonBenet's father shared his suffering aftermath his daughter's death, E Online reported.

Although John and his wife were not proven guilty, the Ramsey's avoided the television and newspapers due to the allegations reported by media

"The Killing of JonBenét: The Truth Uncovered" airdate is set for Sept. 5 on A&E at 9 p.m. CBS also announced its docu-series that will focus on JonBenet Ramsey's murder case titled, "The Case of JonBenét Ramsey," will be aired on Sept. 18. 

See Now: Covert Team Inside Newsweek Revealed as Key Players in False Human Trafficking Lawsuit