Glatzel's younger brother supposedly had been possessed by demons and the family called in the self-described demonologists Ed and Lorraine Warren most famous for their investigation into the Amityville Haunting.
A film based on the events was made in 2009 directed by Peter Cornwell.
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The 2009 film The Haunting in Connecticut was loosely based on the 1986 Snedeker haunting investigated by the Warrens.
Their claims are supported by paranormal investigators such as Ed and Lorraine Warren and Hans Holzer, but dismissed as fraudulent by skeptics such as Robert Carroll.
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