Ashley Charles has been found guilty of the murder of Phillip Sherriff. The incident took place after the Blackberry BBM party in south London.
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Andreea Cristea's partner Andrei Burnaz was due to propose to her on the day she was pushed by a car into the river Thames.
Owen Lambert, 18, and his friends were on a university trip to Parliament when they were hit by the Westminster attacker's speeding car.
As the investigation into Khalid Masood continues, former acquaintances tell of violent incidents in the murderer's past.