The sister of the nursery worker who was shot and killed in Kilburn last week has made an emotional appeal for witnesses to contact police. Twenty four-year-old Sabrina Moss was killed when gunmen fired into a crowd of 20 people outside a fast food restaurant.
Today she was described as a "wonderful mother and sister". Nick Thatcher has the story.
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PC Keith Palmer, 48, stabbed by Khalid Masood while on duty in the grounds of the Palace of Westminster last Wednesday.
Those gathered on the bridge fell silent at 2.40pm - the time the first call was made to police exactly seven days ago.
Simon Lucy, 61, filmed hundreds of hours worth of footage on the London Underground network.