Robert Peston
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Robert Peston on transcribing late wife's final book

1 May 2013 Last updated at 17:37 BST

BBC Business Editor Robert Peston has described how transcribing his late wife Sian Busby's final book helped him cope following her death from lung cancer.

Speaking about A Commonplace Killing, he told Radio 5 Live's Richard Bacon, ''I was in floods of tears but I had to do it''.