Police confiscate computers , examine information on Web sites . Army may have frequented Von Maur , police say . The 19-year-old gunman sent at least one text message to his former girlfriend , with whom he broke up about two weeks ago , Omaha Police Chief Thomas Warren said . Mall shooter was ward of state for Sunday , governor says . Gunman recruiters turned down Jennifer Kramer when he tried to enlist .
Police confiscate computers , examine information on Web sites . Army may have frequented Von Maur , police say . Mall shooter was ward of state for Sunday , governor says . Gunman recruiters turned down Jennifer Kramer when he tried to enlist .