SAN FRANCISCO: Boston's top Catholic official has warned that a “culture of death” may have led to the Boston Marathon bombings and called on people to “build a civilization of love.” At the Cathedral of the Holy Cross, Cardinal Sean P. O'Malley offered Sunday's Mass, which was attended by the city's police commissioner, “for the repose of the souls" of those who died as a result of Monday's bombing and the manhunt for its alleged perpetrators. In his homily, O'Malley said it was difficult to understand “what demons were operative" in the minds of brothers Tamerlan and Dzhokhar Tsarnaev or their politics “or the perversion of their religion." “It was amazing to witness, however, how much goodness and generosity were evidenced in our community as a result of this tragedy," he said. “We have certainly experienced a surge in civic awareness, and a sense of community as a result of the tragedy this week. Our challenge is to keep this spirit of community alive going forward. As people of faith we must commit ourselves to the task of community building.” After reflecting on aspects of the lives of the Tsarnaev brothers that have been reported, O'Malley said that the “individualism and alienation of our age has spawned a culture of death." Three people were killed, including a child, when bombs went off last week at the finish line of the Boston Marathon. Hundreds of others were injured in the attack. BN