One of the world’s most-wanted drug traffickers owns an unsuspecting ranch in a Riverside County valley — and the federal government is trying to seize it. Juan Carlos Valencia Gonzalez, 41, of Santa Ana, is the leader of the Jalisco New Generation Cartel, nearly five months after his stepfather, Nemesio “El Mencho” Oseguera, was killed during a Mexican military anti-drug operation. When Valencia was just a 26-year-old living in Orange County, he bought a ranch in Hemet, California, that was offered to him for just $250,000. The property sits in a ranching community surrounded by farmland and upscale homes, according...