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August 18, 2025 13 mins

On August 21st, 1996, an 11-year-old girl vanished from her quiet Moline, Illinois, neighborhood. Witnesses reported seeing her climb into a gray sedan with an unknown man—and she was never seen again. For decades, the case went cold, leaving her family desperate for answers. Now, nearly 29 years later, a shocking indictment has brought new hope for justice. Join John Conner as he dives deep into the dark to discuss the disappearance of Trudy Appleby. Will this case be enough to make you check the locks?

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This episode of Check the Locks is dedicated, with love, to the memory of our friend Mathew Scott Halliday. 

Sources:

Cold Cases - Crime Stoppers of Quad Cities

Man arrested in murder of 11-year-old Trudy Appleby, who disappeared in 1996 in Moline, Illinois - CBS Chicago

Trudy Leann Appleby

‘Person of interest’ in Trudy Appleby case has died | OurQuadCities

Trudy Appleby's disappearance, 28 years later | wqad.com

Who is the man indicted in Trudy Appleby’s death?

Moline police identify two more ‘persons of interest’ in Trudy Appleby disappearance

Man indicted in Trudy Appleby disappearance

Best friend of girl, 11, who vanished 29 years ago sends heartbreaking plea to accused killer | Daily Mail Online



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