Megan Silberberger intervened in cafeteria attackTwo dead including gunman and four injuredThe story as it unfolded Guardian live blogA newly hired teacher was being hailed as a hero on Saturday after a deadly shooting spree in the cafeteria of a Washington state high school.First-year social studies teacher Megan Silberberger intervened in the attack on Friday at Marysville-Pilchuck High School, teachers union president Randy Davis said.