It was cold and rainy today in Boston. Still, thousands of runners laced up their shoes and headed to Kenmore Square.
That's the site of the final mile marker for the Boston Marathon. On April 15, when two bombs exploded near the finish line, thousands of runners could not finish the most illustrious road race in the world.
An unsolved triple murder in the Boston suburbs is getting a closer look in the wake of the marathon bombings. One of the victims may have been a friend of bombing suspect Tamerlan Tsarnaev. That's prompting authorities to revisit the 2011 case.
The murders took place in Waltham, Mass. On Sept. 12, 2011, police responded to a house in the leafy suburb a few miles west of Boston.
In a message written on a wall of the boat where he was found hiding, Boston bombings suspect Dzhokhar Tsarnaev claimed responsibility for the attack and said it was motivated by anger over the Afghan and Iraq wars, sources familiar with what was found have told CBS News correspondent John Miller.