What we know about the 4 additional victims shot by deranged DC doctor Matt Lambert

A 55-year-old emergency room doctor, Matt Lambert, shot and killed building manager James Stuart at a gym in a Washington, DC apartment complex on Thursday, then wounded four other people before dying by suicide. The shooting spread from the gym to Lambert’s apartment balcony, where he fired at people below, prompting a police standoff.

Police said the four wounded were two women and two men, believed to include construction workers across the street and someone near the gym’s lobby or alley. One woman was shot in the head and another in the arm; the other injuries were reported as non-life-threatening, but the victims’ identities and conditions were not known late Thursday. During the nearly hour-long standoff, Lambert fired at officers and started a fire, which sprinklers extinguished; police found a handgun, shotgun and rifle in his apartment.