To many, Curtis Warren is an evil peddler of death and misery who has made millions flooding towns and cities across the world with dangerous drugs.
But even to those who would never consider breaking the law, there is a fascination with gangsters at the top levels of organised crime. The fast money of the drugs trade undoubtedly has a seductive power to those who take part in it, and for the few who reach Warren's level, some believe the ability to make hundreds of millions in a single deal is almost as addictive as the drugs themselves.
The question of why Warren continued to commit crime even when he reportedly had almost £200m stashed away, and could have sailed off into the sunset a rich man, is difficult to answer. In a new episode of BBC Sounds podcast Bad People, psychologist Dr Julia Shaw discussed that question with investigative journalist Livvy Haydock, who recently produced a separate BBC Sounds podcast series on Warren called 'Gangster'.
