Article Photos: Do you know anyone running in Monday's Boston Marathon? 22/44

Massachusetts Gov Deval Patrick speaks about the explosions during a press conference as Boston Boston Police Commissioner Edward Davis, right, looks on, Monday, April 15, 2013, in Boston. Two explosions disrupted the Boston Marathon on Monday, causing at least two deaths and dozens of injuries and scattering crowds near the finish line, authorities said. (AP Photo/Bizuayehu Tesfaye) ORG XMIT: MABT102