Obama in Boston Thursday He will participate in service for the victims By John Johnson, Newser Staff Posted Apr 16, 2013 5:44 PM CDT 23 comments Comments The American flag is lowered at the White House Tuesday to honor the victims in Boston. (AP Photo/Susan Walsh) (Newser) – President Obama will travel to Boston Thursday for a morning service to honor the victims in Boston, reports the Washington Post. The interfaith service is set to take place at 11am at the Cathedral of the Holy Cross in the city. Earlier today, the president called the attack an "act of terror" but said investigators still didn't know who was responsible. Two of three people killed have been identified so far.