2. The Accusations

As the investigation into who felled Sycamore Gap gets underway, accusations start to fly. One man falsely accused of cutting down the iconic tree was farmer Walter Renwick. In his first broadcast interview he shares how the resulting rumours and "trial by social media" impacted his life. Meanwhile, journalists descend on the communities near Hadrian's Wall in Northumberland and discover a teenager has been arrested. Presenter: Si King. Producer: Jane Downs with additional reporting by Jo Lonsdale and Martin Lindsay. Sounds Producer and design: Alexandra Booth. Sound Mixing: Chris Fawcett. Story Consultant: Barney Rowntree. Online Producer: Rachael Smith. Executive Producer: Dan Farthing and Alistair Miskin. This episode contains very strong language and reference to suicide. Information about support is available at bbc.co.uk/actionline.