The widow of former Russian spy Alexander Litvinenko has said she fought for a public inquiry for "justice and truth."
Using the name her husband's loved ones knew him as, Marina Litvinenko told reporters: "For me it is very important because there is a lot of speculation about why Sacha died and what happened. I want to finish the speculation about his death."
She added: "It is very difficult to say what I feel exactly now but I was waiting for this day.... I'm for justice and truth."
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"We've never actually spoken so publicly about her," the Duke of Cambridge said. "But we felt that this was the right time to do it."