Juan Carlos Herrera is beyond devastated. He says his 25-year-old-son, jailed in 2015 for robbery, was beaten, dismembered and eaten by fellow inmates at the Táchira Detention Center. The shocking claim became public on Oct. 10, when Herrera told the local media he made the gruesome discovery during a regular prison visit. He explained the alleged atrocity occurred during a month-long mutiny that had ended three days earlier. “One of those who were with him when he was murdered saw everything that happened,” Herrera told reporters. “My son and two others were taken by 40 people, stabbed, hanged to bleed,...