Newtown, Conn., is a white-collar community an hour and a half northeast of New York City. It's the kind of place where crime is rare and the biggest thing that happens each year is the Labor Day parade.
Now the peace and quiet has been shattered, and residents are trying to make sense of what's happened.
Hours after the shootings that left so many people dead, St. Rose of Lima Catholic Church opened its doors for a prayer vigil. People filed through the streets and past houses decorated with Christmas lights.
Even as Friday's shooting at Sandy Hook Elementary in Newtown, Conn., suggests that more could be done, the whole culture of school security has undergone a revolution since the 1999 Columbine school shooting, experts say.
"Schools are far more secure than they were at the time of Columbine," says Paul Timm, president of RETA Security Inc., a school security consultancy.
For one, he says, "They keep most exterior doors secured, which is something they didn't pay much attention to before."