Dr Turner said the charring was of such an extent any potential significant injuries could have been "obliterated".

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As he and Fogg removed some of the clutter, they noticed deep charring along the base of the walls.

NEWYORKER: Trial by Fire

Boswell and Smith began a massive search for a wood and a charring process that would give them the result they wanted.

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"The charring is only on the surface, " unless an accelerant was used or unless the body was subjected to "crematory-like temperatures, " causing it to disintegrate, Spitz said.

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During the Lime Street experiment, other things happened that were supposed to occur only in a fire fuelled by liquid accelerant: charring along the base of the walls and doorways, and burning under furniture.

NEWYORKER: Trial by Fire