55 people remain hospitalized from the marathon bombings . Doctors are `` cautiously optimistic '' a wounded transit officer will recover . The injured include at least two police officers and one civilian who was hit by shrapnel in his leg, according to officials. Based on evidence , the brothers were going to attack others , an official says .
55 people remain hospitalized from the marathon bombings . Doctors are `` cautiously optimistic '' a wounded transit officer will recover . The surviving suspect was shot in the side of the neck , a source tells CNN . Based on evidence , the brothers were going to attack others , an official says .