On this day: January 11

POSTED: 11:39 AM PST Jan 10, 2013    UPDATED: 11:00 PM PST Jan 10, 2015 
Mark McGwire, St. Louis Cardinals hitting coach, 2010

A U.S. marshal dies in the line of duty for the first time, a landmark report points to the hazards of smoking, the designated hitter comes into play, and Mark McGwire admits to steroid use, all on this day.