1.   Chavez had ordered National Guard troops and civilian gunmen, including rooftop snipers, to fire on marchers, military officers said.

2.   Chavez had ordered National Guard troops and civilian gunmen, including rooftop snipers, to fire on the marchers, military officers said.

3.   Chavez had ordered National Guard troops and civilian gunmen, including rooftop snipers, to stop the marchers from reaching the palace, military officers said.

4.   Rooftop snipers opened fire on the protesters.

5.   Ramos said soldiers and police had apparently surrounded the church and hospital but were under heavy fire from rooftop snipers.

6.   Rooftop snipers and Chavez supporters repeatedly fired upon the protesters and even ambulance crews trying to evacuate the wounded.

7.   Rooftop snipers routinely fire into congested neighborhoods, mostly in the western and central districts.