Sir Trevor asks some very difficult questions in the next episode of The Mafia with Trevor McDonald - and the answers he get are ruthless and shocking.
Trevor McDonald gains unprecedented access to people who have experienced the money, glamour and violence of the United States’ most famous organised crime network.
The Mafia with Trevor McDonald starts on March 23rd at 9pm
Read about Trevor McDonald's eye-opening journey here
One notorious mobster tells Trevor that the motive to kill was so strong, he ended the life of a friend.
Trevor learns that being part of the secretive world of the American Mafia, comes at a huge cost to the families involved.
In this exclusive video, Trevor McDonald tells us what made him feel most uncomfortable during the filming of the two-part documentary.
Trevor McDonald tells of the moment he realised the true nature of the sort of people he was dealing with.
We've all seen films like The Godfather and Goodfellas, but life in the mafia is very different to how it is portrayed in the movies, as Trevor McDonald tells us in the exclusive video above.
Trevor McDonald tells us how he prepared for his eye-opening journey inside the secretive world of the American Mafia, and how he went about gaining their confidence.