There were 37 candidates on the ballot this year, including 24 first-timers. No one received 75 percent of the votes required to be inducted. It is the eighth time that no one will be elected.

All-Time home run leader Barry Bonds, seven-time Cy Young winner Roger Clemmons, and Sammy Sosa, the only player to hit at least 60 home runs in three seasons, were all eligible to
be elected. Their suspected performance-enhancing drug use kept them from being voted in.

It was the fifteenth and last shot for Dale Murphy to be inducted, but he fell short with only 18.6 percent of the votes. He will be removed from the ballot.

http://baseballhall.org/news/press-releases/2013-hall-fame-vote-shutout