Widow Pamela Schutzmann has just won a lengthy legal battle to win back her £800,000-pound home in Hampstead, which was sold without her knowledge. But she has lost her life savings of £400,000.
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The mayor went on a walkabout at a farmers market in Bedford and signed copies of his new book in a local book store.
People are being encouraged to post pictures of themselves sleeping in "weird" places in a bid to raise money to tackle homelessness.
The actor received the award at Guildhall in recognition of his work for gay rights.