sentences:  The LITEMPO had previously provided the Díaz Ordaz government with 1,000 rounds of .223 Remington ammunition in 1963.After weeks of huge and largely peaceful demonstrations in Mexico City in August and September by students and middle class Mexicans, the government cracked down on October 2, with army and special tactical units opening fire on a relatively small demonstration in Tlatelolco, a section of the metropolis.They killed and wounded a large but unknown number of protesters.