BBC News Published image captionDerek William Barks, Derek Moore, Jason Shingler and Dorothy Bailey died in the 2015 explosion Manslaughter charges have been dropped against the owner of a wood mill where four people died in a blast. George Boden was a director of Wood Treatment Ltd in 2015 when the explosion happened at Wood Flour Mills in Bosley, Cheshire. Corporate manslaughter charges against the firm have also been dropped. At a special Nightingale Court at Chester Town Hall, Mr Boden pleaded guilty to a health and safety offence. The exact cause of the fatal blast is not known, but it ...