See Video & Pictures HereA heavily armed gunman attacked an Aurora, Colorado, movie theater early Friday, tossing tear gas before opening fire on the terrified audience and killing 12 and wounding 38, authorities said. The theater was showing the new Batman movie, "The Dark Knight Rises." One of the injured was just 3 months old, hospital workers said. The shooting unfolded inside a darkened theater packed with Batman fans, some in costume for the movie's premiere. Screaming, panicked moviegoers scrambled to escape from the black-clad gunman, who wore a gas mask and randomly shot as he walked up the theater's...