Heroin, alcohol cited in "Glee" star's death

      |The CBS News Roundup: The coroners report for "Glee" star Cory Monteith reveals that he died of a drug overdose involving heroin and alcohol; a musician is attacked after dedicating a song to Trayvon Martin; flooding brings fishing to China streets -- all this and more. Nick Dietz reports on the news you need to know.

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