Omaha Wonders: Why Did 'Lost Puppy' Kill?

"They wanted to know why I did what I did. Well, sir, guess there's just a meanness in this world." --Bruce Springsteen, "Nebraska" (1982) How do you explain the kind of meanness, confusion and rage that would compel a 19-year-old to walk into a mall in the middle of the day and kill eight people and then himself with a semiautomatic assault rifle? What happened to Robert Hawkins, or Robbie, as he was known, that would make him break down and inflict such terrible damage? Dozens of reporters...Full Story