Lyra McKee was shot in the head amid disturbances on Thursday evening.
The protest is part of wider demonstrations around London organised by the campaign group Extinction Rebellion.
The 29-year-old journalist was described as a ‘kind, gentle, witty and stubborn soul’.
The Queen’s birthday is on April 21, while the Pink Moon begins on April 19.
Scott Mitchell is running the Virgin Money London Marathon for Dementia Revolution on his 56th birthday.
April 19, 1995: 168 die as Iraq War veterans bomb government building in Oklahoma City
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