Pablo Escobar, the Colombian drug lord, had an estimated peak net worth of $30 billion in the 1980s-90s, making him arguably the wealthiest criminal in recorded history. He controlled the Medellín Cartel and supplied 80% of the world's cocaine. Dawood Ibrahim, Susumu Ishii, and Adnan Khashoggi (typo in option) were all wealthy figures but none reached Escobar's scale of criminal wealth.