The charity that's regarded as Britain's leader in helping people with HIV and Aids is marking 30 years of campaigning with a charity dinner.
The Terrence Higgins Trust was set up in the capital in the name of a London man who was among the first people in the UK to die of AIDS.
Here's what happened at the charity bash last year.
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John, who began running for Age UK back in the 1980s when he was aged 53, has raised an incredible amount since then - more than £40,000.
It was Tom's second marathon in two weeks run in memory of his father, Martin Campbell.
Surrey Police are appealing for witnesses after the driver was seriously injured in the crash in the early hours of Saturday.