An almighty failure by at least a dozen newspapers who, on 12th July 2016, ran with a story that was fundamentally inaccurate; one with a central assertion that:
1. Angela Eagle’s office window had been smashed by a brick
2. Angela Eagle’s office / surgery had been attacked by somebody

All the relevant stories are linked to here:
Daily Telegraph
Independent
London Evening Standard
Daily Express
Daily Mail
The Guardian
Daily Star
The S*n (not linking here)
Huffington Post
BBC
The i Newspaper
The Liverpool Echo
The Wirral Globe

And here are the facts, which took six months to emerge:
https://wirralinittogether.blog/2017/02/01/merseyside-police-expose-angela-eagles-brickgate-newspaper-tv-and-radio-falsehoods/