A university student, a National Guard captain and a third man were shot to death in separate incidents on Wednesday during anti-government protests in the central city of Valencia. Three National Guardsmen and several protesters were wounded. Two of the deaths occurred in the opposition-dominated neighborhood of Isabelica, where residents dissatisfied with the scarcity of basic items and rising unemployment have protested for weeks by blocking streets and throwing rocks at police officers.  The opposition has accused the government of supporting armed civilian thugs who attack protesters. A month of student-led demonstrations in a number of Venezuelan cities has left at least 25 people dead, according to the government.