Stephen Lawrence's family are expected to meet Home Secretary Theresa May today to ask for a new public inquiry.
It follows claims claims that police secretly tried to undermine the family of the murdered teenager.
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Rebecca Casserly was on her way to buy a coffee in north London when her phone was suddenly snatch from her hand by a man riding a bike.
Lee Curley took more than 120 pictures and videos of his attacks on the girl, said to be under the age of 13.
Council workers uncovered the AK-74 concealed in the undergrowth.