Caracas, Safar 15, 1437, Nov 27, 2015, SPA -- Venezuelan President Nicolas Maduro said Thursday that he was sorry for the death of an opposition politician a day earlier at a campaign rally and that investigators think he was most likely shot dead by a hired killer in a vendetta between criminal gangs, dpa reported. Maduro slammed Luis Almagro, secretary-general of the Organization of American States (OAS), for having commented on the death of Luis Manuel Diaz late Wednesday, ahead of national polls in less than two weeks' time. -- SPA 02:50 LOCAL TIME 23:50 GMT www.spa.gov.sa/w