On this day: February 14

POSTED: 8:55 PM PST February 13, 2013    UPDATED: 11:00 PM PST February 13, 2013 
Jackie Kennedy, 1962 White House TV tour

Saint Valentine dies a martyr, President Polk has his picture snapped, Al Capone sends his foes a violent Valentine's Day message, and Jackie Kennedy invites TV viewers inside the White House, all on this day.