In Pennsylvania, a gunman entered a one-room Amish school house on Monday and shot 11 girls in the head. Five of the girls died, the six others are in critical condition. The man — a local milk truck driver — entered the schoolhouse and ordered all of the boys and adults to leave. He then ordered the girls to line up facing the blackboard. After he tied them up, he shot them all in the head. This marks the third school shooting in the past week. Last Wednesday, a gunman took six students hostage at a high school in Colorado. The gunman sexually assaulted the girls and killed one of them. And on Friday, a 15-year-old student shot dead a teacher at a high school in Wisconsin.