The central enigma of Elisa Lam's 2013 death is the final known footage of her alive. In the silent security video, the 21-year-old student is seen behaving erratically inside an elevator at the Cecil Hotel, pressing multiple buttons, hiding in a corner, and making strange hand gestures before disappearing from view. Nineteen days after she vanished, her body was discovered inside a large, sealed water tank on the building's locked roof, an area that was supposedly inaccessible to guests. While authorities officially ruled her death an accidental drowning, with her bipolar disorder listed as a significant condition, this conclusion fails to resolve the fundamental questions of the case, providing no logistical explanation for how she managed to bypass security, access the restricted rooftop, and get inside the heavy-lidded cistern by herself.