Boys walk past the San Marcelo school in Lima
Boys walk past the San Marcelo school in Lima March 1, 2012. Olga Sanabria La Torre, the headmistress of the San Marcelo school, was killed on Thursday when an unidentified man shot three bullets at her after breaking into the school, according to local media. Although more than a million students in Peru returned to school on Thursday for the new academic year, San Marcelo's students were not in classes during the shooting as its first term was only set to begin on March 5. REUTERS/Pilar Olivares (PERU - Tags: CRIME LAW POLITICS EDUCATION)