Mushroom murderer trial undermined by 'catastrophic' hotel mix-up, appeal court told

The update

Erin Patterson's defence team appeal against her conviction for killing relatives with a beef Wellington laced with toxic mushrooms

Why mushroom matters

This development in mushroom, murderer, trial, undermined, catastrophic matters because it alters the baseline assumptions that BBC and others have been working from.

What led here

Earlier reporting from BBC and comparable outlets sketched the conditions that would eventually produce an event like this.

Where this fits in Signal Ledger

Related coverage from the World desk.

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The editorial angle

Signal Ledger reads this through the lens of mushroom, murderer, trial, undermined, catastrophic: Erin Patterson's defence team appeal against her conviction for killing relatives with a beef Wellington laced with toxic mushrooms.