The parents of the soldier who was found dead from a single gunshot wound at Deepcut barracks in November 1995 said they were "delighted" to have a fresh inquest into her death.
But Mr and Mrs James said "a meaningful inquiry into Cheryl's death is almost 20 years late."
When young people die in violent circumstances, a rigorous and transparent investigation should be automatic. Something went dreadfully wrong at Deepcut yet until now no-one has bothered to look at how and why our daughter died. We can only hope that Cheryl's legacy helps change the current ineffective and discredited military justice system.
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The band announced at a free concert on Friday that they would take over the event's Pyramid stage on Saturday June 25.
Sixty people died when a pick-up truck was blown up as they waited to collect permits and escorts a day after their home town was liberated.
Scotland Yard said the male youths will appear in custody at Westminster Magistrates' Court on Saturday.