The Tren de Aragua leader killed in a US-Venezuelan raid was a high school dropout who lived in comfort behind bars as he transformed a prison gang into one of the most powerful and extensive criminal organisations in Latin America.Hector Rusthenford Guerrero Flores, alias Nino Guerrero, or “child warrior”, died at age 42 in a raid announced Friday by President Donald Trump and later confirmed by Venezuela.Founded in Venezuela in 2014, Tren de Aragua has been designated a terrorist...