Episode 475 - Jackie Markham

December 14, 2000. Callahan, Florida. After picking up a prescription from a pharmacy, 51-year old Jackie Markham returns home from work, but she soon vanishes without a trace and the prescription is found on the front seat of her car inside the garage. Jackie’s boyfriend, Archie Carroll, claims she phoned him to say that a drunk man named “Richard” had unexpectedly shown up at her house, but by the time Archie drove over there to check on her, Jackie was gone. Investigators explore a number of different leads, including the possibility that Jackie was harmed by a suspected serial killer or that Archie himself could have been responsible for her disappearance, but there is no evidence of what happened. On this week’s episode of “The Trail Went Cold”, we explore the disappearance of Jackie Markham, which has gone unsolved for 25 years. Special thanks to listener Ryan Sheesley for narrating the opening of this episode. If you have any information about this case, please contact the Nassau County Sheriff’s Office at (904) 225-8984. Additional Reading: “The Trail Went Cold” is on Patreon. Visit to become a patron and gain access to our exclusive bonus content. The Trail Went Cold is produced and edited by Magill Foote . All music is composed by Vince Nitro .

You can listen to Episode 475 - Jackie Markham online on Radio and Podcast. Open the player on this page to stream the available audio.

Episode 475 - Jackie Markham is an episode from The Trail Went Cold by Robin Warder.

This episode is 54:05 long.

This episode was published on Mar 25, 2026.

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