Two granddaughters of the longtime detective in the JonBenét Ramsey Fall keep his legacy alive and do what they can to also honor the memory of the girl who is killed.

Twenty-four years after the beauty queen was killed at her home in Boulder, Colorado, aged 6, ABCs 20/20 is dedicating its Friday, January 15 episode to the ongoing investigation into the unsolved crime. In particular, the episode will focus on Lexi Marra and Jessa Van Der Woerd, whose grandfather Lou Smit had dedicated his life to proving the Ramsey family’s innocence until his death in 2010 after battling colon cancer.

“You know a lot about the case, my two girls,” said Lou’s son-in-law Kent Marra shares a 20/20 preview clip that is exclusive to E! News. “You loved your grandfather.”

In the above footage from the episode, Lexi and Jessa can be seen working on their The Victim’s Shoes podcast, which focuses on JonBenét’s December 25th 1996 murder and the endless speculation and theories. Also a new documentary called JonBenét Ramsey: What Really Happened? is currently streamed on Discovery + and includes previously unreleased audio from Lou.