FILE - In this Feb. 28, 2014 file photo, Ivan Marquez, chief negotiator for the Revolutionary Armed Forces of Colombia, or FARC, center, speaks to journalists accompanied by Commander Fabian Ramirez, left, and Commanders Jairo Martinez, second from right and Fidel Rondon, during the continuation of peace talks with Colombia's government in Havana, Cuba. The FARC issued a statement issued Wednesday, May 27, 2015 that said the man known by the alias Jairo Martinez was among 27 rebel fighters killed during an attack on a guerrilla camp in southwest Colombia last week. The FARC says Martinez was visiting troops to discuss progress at the peace talks when they were surprised by the air and ground assault. Martinez’s real name is Pedro Nel Daza. (AP Photo/Franklin Reyes, File)