The Chicago Tribune dedicates its sports section to Boston. (Photo from Chicago Tribune)
A Show Of Support For Boston
A message from New Yorkers projected on the side of a building at the Brooklyn Academy of Music. (Photo Courtesy: Chris Roan)
A Show Of Support For Boston
The US flag above the White House flies at half-staff. (Photo credit should read MANDEL NGAN/AFP/Getty Images)
A Show Of Support For Boston
The US flag flies at half staff at the US Capitol building. (Photo by Alex Wong/Getty Images)
A Show Of Support For Boston
The Brooklyn Nets and the Washington Wizards observe a moment of silence for those injured and killed in the attack. (Photo by Nathaniel S. Butler/NBAE via Getty Images)
A Show Of Support For Boston
Ben Revere of the Philadelphia Phillies tapes a message to his glove. (Photo by Andy Lyons/Getty Images)
A Show Of Support For Boston
Keith Yandle of the Phoenix Coyotes has the words 'Pray For Boston' written on the side of his skates. (Photo by Christian Petersen/Getty Images)
A Show Of Support For Boston
NHL fans take a moment of silence in Glendale, Arizona. (Photo by Christian Petersen/Getty Images)
A Show Of Support For Boston
Boston's flag flying at half staff at New York City Hall. (Photo from NYC Dept. Mayor Howard Wolfson)
A Show Of Support For Boston
LONDON: Arsenal and Everton teams include a moment of silences for Boston during a remembrance to mark the Hillsborough soccer tragedy. (Photo by Michael Regan/Getty Images)