In 2015, Otto Warmbier, a 22-year-old American student, traveled to North Korea for a brief tour, but his trip turned into a nightmare. Arrested for attempting to steal a propaganda poster, Otto was sentenced to 15 years of hard labor. After 17 months of captivity, he was returned home in a coma, suffering from severe brain damage. Otto passed away just days after his return, leaving behind a heartbroken family. What happened to Otto in North Korea remains a tragic and unresolved mystery.