Cindy Song was a 21-year-old Penn State student who vanished without a trace after a Halloween party in 2001. She was dropped off at her apartment around 4 a.m. and was never seen again. Her purse, keys, and ID were missing, but her phone and backpack were left behind. Despite widespread media attention, numerous theories, and possible connections to known criminals, her case remains unsolved 24 years later.
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