Multiple police officers armed with rifles and a ballistic shield were inside rob elementary school 19 minutes after the gunmen, according to new details. Yet law enforcement still waited roughly an hour to breach the asroom where the shooter carried out his deadly rampage last month. The newly reported account contradicts earlier reports that givaldi school district police chief pete a ardando was waiting for tactical gear and a protective shield to move on. In another response, the valdi chief police a pete a aridando put officers lives before lives of children. "This set our profession back a decade," said Texas d p s director steve mc craw.