BOSTON - President Barack Obama will travel to Boston on Thursday for an interfaith service for victims of yesterday's bombing at the Boston Marathon.
Massachusetts Gov. Deval Patrick announced Obama's visit during a news briefing. A vigil was held last night night for the three people killed and more than 100 injured in the attack.
The President is calling the Boston Marathon bombing an act of terrorism, and federal agents say they now how it was carried out.
But so far, there's still no word on who might have done it or way. The FBI and other law enforcement agencies are asking members of the public to come forward with any photos, videos or other evidence they may have seen or heard.
They say the bomber used kitchen pressure cookers packed with explosives, nails and other lethal shrapnel in the attack.