A documentary promoting the theory alleging that the Sandy Hook incident was a hoax designed to increase popular support for gun control. A documentary promoting the theory alleging that the Sandy Hook incident was a hoax designed to increase popular support for gun control. A documentary promoting the theory alleging that the Sandy Hook incident was a hoax designed to increase popular support for gun control. A documentary promoting the theory alleging that the Sandy Hook incident was a hoax designed to increase popular support for gun control.