Watch the chilling first trailer for The Case of JonBenét Ramsey docuseries

If the end of Making a Murderer and The People v. OJ Simpson left a void in your TV schedule, this news is for you. The Case of JonBenét Ramsey is only weeks away from premiering (it’s the 20-year anniversary of the mysterious and still-unsolved case). The six-hour docuseries will air on CBS on September 18th, 19th and 25th for two hours per episode.

The coolest part? It’ll feature appearances by people who actually worked on the case back in 1996, like Jim Clemente (former New York City prosecutor and FBI supervisory special agent and profiler), James Fitzgerald (FBI supervisory special agent and forensic linguistic profiler), Dr. Henry Lee (forensic scientist), Dr. Werner Spitz (forensic pathologist), and James Kolar (former chief investigator for the District Attorney).

Watch the trailer above and mark your calendars.