Three teenagers have been arrested after a man was stabbed and robbed of a copy of Grand Theft Auto V less than two hours after buying the game in Colindale.
The 23-year-old was attacked as he made his way home from a midnight launch event in the early hours of yesterday morning.
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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.