MIAMI — A Venezuelan criminal gang that for the past few years has been extending its operations and causing havoc throughout Latin America has made an appearance in South Florida, police say, claiming that at least one of its members was involved in a recent Miami murder. José Luis Sánchez Valera, a 43-year-old retired Venezuelan police officer who lived in Doral, was lured by women into a hotel room in Miami in late November and killed after he was abducted in the parking lot. Yurwin Salazar, 23, a Venezuelan immigrant who lives in South Florida, has been charged with the murder. According t…