Pablo Escobar was one of the world's richest men during his lifetime, controlling 80% of the global cocaine trade until he was shot dead in 1993.

Phillip Witcomb grew up knowing almost nothing about Escobar, until the day he learned the notorious Colombian drug lord was his father.

Phillip's birth name was Roberto Sendoya Escobar, and he was adopted by an MI6 agent and his wife.

In 1989, his adoptive father told him the truth about his paternity.

Phillip joined us on The Last Word to discuss his new book, Son of Escobar: First Born, and his incredible life story.