Guatemalan authorities are investigating whether Mexican drug cartel boss Joaquin "El Chapo" Guzman was killed in a clash between traffickers and its forces in Peten near the border with Mexico.<br /><br />Officials on Thursday said fingerprints and photos were taken to determine whether Mexico's most wanted man was dead. The information was being cross-checked with Mexican authorities.<br /><br />Al Jazeera's John Hendren reports from Mexico City.
