Alex Sanchez is a former high-ranking member of MS-13. He became involved in the gang in the 1980s in Los Angeles and participated in its expansion.
Pieter Tritton, a former cocaine smuggler, returns for a second interview with Business Insider about his experience trafficking drugs from South America to the United Kingdom.
Andy "Rebirth" Pellerano is a former soldier for the Almighty Latin King Nation, or Latin Kings, one of the largest and most dangerous prison and street gangs in the United States.
Jim Browning is a software engineer and an expert on scam call centers. His YouTube channel baits scammers by gaining access to their computers, observing them through CCTV, and hacking into their networks.