A feminist campaigner from north London - subjected to rape and death threats on Twitter - has deleted her account. It comes a day after Caroline Criado-Perez raised concerns about the police investigation into abuse.
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The results of the first preference votes counted so far gives an early indication that Mr Khan is line to take power at City Hall.
Mr Goldsmith's campaign, run by Sir Lynton's communications firm has come under fire from Labour.
Google been delving deep into its own data, and has some intriguing answers.