According to a report by Reuters, on Wednesday, a defense lawyer for Joaquin 'El Chapo' Guzman named some of his former close associates who are expected to testify against him at a US trial. Prosecutors are reportedly looking to prove that the 61 yea-old Guzman directed the flow of vast quantities of cocaine, marijuana, heroin and methamphetamine into the United States as the leader of the Sinaloa Cartel.