4 Real Mysteries Science Still Can’t Explain | Global True Crime Cases | Dark Data Files

Four true stories, four unsolved mysteries that defy all scientific and logical explanation. Join Dark Data Files for this documentary as we explore real-life cases that left investigators empty-handed: from the unbreakable code of the Tamám Shud Case in Australia, to the tragedy of the Dyatlov Pass hikers in Russia, the anonymous letters that terrorized Ohio for decades (Circleville Letters), and the shocking airport disappearance of Lars Mittank. The truth is out there... but are some secrets truly meant to remain buried? What's your theory on these cases? Comment below! -- CASES IN THIS EPISODE -- 00:55 | Mystery 1: The Tamám Shud Code 02:40 | Mystery 2: The Dyatlov Pass Incident 04:30 | Mystery 3: The Circleville Letters 06:45 | Mystery 4: The Disappearance of Lars Mittank Subscribe to Dark Data Files for new true mysteries every week: [YOUR CHANNEL LINK HERE] #DarkDataFiles #UnsolvedMysteries #TrueCrime #RealMysteries #GlobalMysteries #DyatlovPass #TamamShud #CirclevilleLetters #LarsMittank #Documentary #Unexplained #coldcases