One American Minister returned to the United States after he learned the dictator had given orders to poison him. Former President Manuel Barillas was stabbed to death in Mexico City, on a street outside of the Mexican presidential residence on Cabrera's orders; the street now bears the name of Calle Guatemala. Also, Estrada Cabrera responded violently to workers' strikes against UFC. In one incident, when UFC went directly to Estrada Cabrera to resolve a strike (after the armed forces refused to respond), the president ordered an armed unit to enter the workers' compound. The forces "arrived in the night, firing indiscriminately into the workers' sleeping quarters, wounding and killing an unspecified number."