The Cecil Hotel is in Downtown Los Angeles. It is a budget hotel with 600 rooms, constructed in 1924. This Hotel is known for several suicides and its criminal activcreated ities. Most notably, the hotel was the reported residence for serial killers Richard Ramirez in 1985 and Jack Unterweger in 1991.
The nude body of Elisa Lam, a 21-year-old Canadian student, in 2013, was found inside one of the water supply tanks on the hotel roof. Lam was missing January 31, and her decomposed body was discovered on February 19 by a maintenance worker in one of the rooftop water tanks. The guests had complained about low water pressure and water that "tasted funny".
Sadly, authorities ruled Lam's death accidental. Video surveillance footage taken from inside an elevator showed Lam acting strangely, pressing multiple elevator buttons, hiding in the corner of the elevator, and waving her arms wildly.
Reference/Some Info reused: http://en.wikipedia.org/wiki/Cecil_Hotel_%28Los_Angeles%29
Photo: "Hotel Cecil LA" by ZhengZhou - Own work. Licensed under CC BY-SA 3.0 via Wikimedia Commons - http://commons.wikimedia.org/wiki/File:Hotel_Cecil_LA.jpg#/media/File:Hotel_Cecil_LA.jpg