Exclusive: Colombia's ELN says it killed Russian hostage; risks peace talks with government

By Helen Murphy and Luis Jaime AcostaNORTHWESTERN JUNGLES, Colombia (Reuters) - Colombia's ELN guerrilla group said a Russian-Armenian citizen it held hostage for six months was killed in April while trying to escape, a startling admission that risks throwing current peace talks with the government into jeopardy. In a rare interview, a commander of the National Liberation Army, Colombia's last active guerrilla group, said that ransoms from kidnappings were necessary to keep its fighters in