American Murder: The Family Next Door viewers believe Shannan Watts sent police a clue about her murder from "beyond the grave".
The documentary investigates the 2018 crimes of Chris Watts, 35, who brutally killed his pregnant wife Shanann, 34, and their two daughters Bella, four and Celeste aged three.
Shannan's body was discovered in a "foetal position" in a shallow grave, while her two young daughters had been found dumped into an oil tank at the oil and gas exploration site where he worked in Frederick, Colorado, US, reports Daily Star.
Chris has since been given five life sentences for the twisted murders. Now, fans of the documentary on Facebook believe they have unearthed the moment Shanann sent police a message from beyond the
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