Edition: Singapore Indonesia Asia US/UK NEW YORK: A son of Mexican drug kingpin Joaquin "El Chapo" Guzman has agreed to plead guilty to drug trafficking in the United States as part of a plea deal, court documents show. Ovidio Guzman is accused of conspiring to ship cocaine, fentanyl, heroin, methamphetamine and marijuana into the United States, via a faction of the notorious Sinaloa Cartel founded by his father. Federal court documents dated Jun 30 and signed by Ovidio Guzman, alias "Raton" (