Breaking News from CBS

• Long Island police defend Hofstra student killing

  Known criminal had Hofstra student Andrea Rebello in a headlock after robbery; officer fired eight bullets, killing both

• Dressing down a culture for refusing to dress up

  One Notre Dame professor crusading against "a nation of slobs" seeks to teach her students the lost art of more elegant attire (with poll)

• Lottery officials confirm lone winning record Powerball ticket

  Someone in Fla. won the largest-ever $590M Powerball Saturday; ticket sold at supermarket in Zephyrhills

• 1 winning ticket sold in Fla. on Powerball

  Lottery official in Iowa confirmed the ticket matching all six numbers for jackpot of more than $590 million was sold in Florida

• Understanding heroin and its hold on addicts

  A look at the highly addictive drug's history, use and treatment for those who get hooked