He carried a lot of cash to make it look like he had a lot of money, possibly to project an image of wealth and success.
The brass door knocker in the shape of a fox's head suggests that the house is indeed where Fox lives, indicating a personal connection to the symbol.
Sam remained anonymous due to his knowledge of the Norwich drug scene and potential links to the drug world, which could pose personal risks.
Fox's lifestyle, including his well-dressed appearance, carrying of cash, and interest in martial arts, mirrored the characters in Guy Ritchie's gangster movies, particularly those with a lawless edge.
Fox refused to answer questions about the cocaine found on his yacht, stating 'I'm not doing this' and walking away from the interview.
The Brazilian police claimed Fox was an international drug trafficker based on the discovery of more than a tonne of cocaine on his yacht, the Rich Harvest, in 2017.
After imprisonment, Daniel and Rodrigo struggled to find work in the boating industry due to their criminal records, forcing them to seek alternative employment.
After being cleared of charges, Daniel and Rodrigo experienced a sense of relief and were able to rebuild their lives, though they faced ongoing challenges in their careers.
The BBC team decided to approach Fox at a business networking event because it provided a predictable and controlled environment where they could directly ask him about the cocaine found on his yacht.
The attempt to interview Fox was unsuccessful as he refused to answer any questions and quickly left the scene, indicating his unwillingness to discuss the matter.
Our investigation moves to a hotel car park in Norwich, England. What more new leads will this bring? We find the man himself, but what does Fox have to say about the tonne of cocaine found on his yacht? How does he respond to the claims from Brazilian police?