Speedy defense for El Chapo in US court -- 30 minutes

For nearly three months, US federal prosecutors have made their case against Mexican drug kingpin Joaquin "El Chapo" Guzman in a Brooklyn courtroom. The only witness called by the defense was FBI agent Paul Roberts, who in February 2017 interviewed Jorge Cifuentes, one of Guzman's cocaine suppliers who is jailed in the US and testified against his former boss. Guzman's legal team put Roberts -- who took notes during that interview -- on the stand to try to undermine the credibility of Cifuentes, one of the main witnesses against the 61-year-old onetime Sinaloa cartel boss.