Families all over the world send their children off to school each morning, confident they’ll be watched over throughout the day until they return home safely. But on April 12, 2016, this was not the case for 16-year-old Mekayla Bali. When Mekayla’s grandmother dropped her off at Sacred Heart High School that morning, no one could have predicted that by day’s end, Mekayla would be reported as a missing person. Security footage of Mekayla recorded at 12:02 pm that afternoon would become the last confirmed sighting of the teenager in nearly four years. In this video, we’ll examine the unusual and heartbreaking disappearance of Mekayla Bali, and explore the most intriguing theories about why and how she vanished.