About eight hours have passed since shooting began at the Washington Navy Yard, and information is still sketchy. Early reports that as many as three shooters were involved appear not to be true. Investigators are still seeking a possible second suspect, but it now appears highly likely that today’s carnage — which killed at least 12 victims and may have wounded about a dozen others — was committed by one man, Aaron Alexis, 34, of Fort Worth, Texas. He was shot and killed, and was identified by his fingerprints, the New York Times reports.
Motive for this massacre is unclear, and the FBI is leading the investigation now under way.