Boston Explosions Update at 12:40 p.m. ET. Where Things Stand. DEATHS, INJURIES: Three people were killed and at least 176 were injured, according to Boston Police. At least 17 of the wounded were critically injured.
President Barack Obama on Tuesday named veteran Secret Service agent Julia Pierson as the agency's first female director, signaling his desire to change the culture at the male-dominated service, which has been marred by scandal.