Vegas gunman had device turning weapon into automatic

The gunman who unleashed hundreds of rounds of gunfire on a crowd of concertgoers in Las Vegas had two "bump-stocks" that could have converted semi-automatic firearms into fully automatic ones, officials said.The devices have attracted scrutiny in recent years from authorities.California Sen. Dianne Feinstein has long railed against them. Several years ago, she told The Associated Press she was concerned about the emergence of new technologies that could retrofit firearms to make them fully auto