One witness, Katy Scheflen, said she did not hear the man say anything intelligible before he set himself on fire. But she said she did notice that another man with a tripod was standing nearby and had disappeared by the time the police had arrived. It was not immediately clear whether a recording exists.
"He appeared to be waiting for something to happen. After it happened, he was gone," Scheflen, a Justice Department lawyer, said Saturday of the man with the tripod.
"I can't say what the connection was between them or whether there was a connection," she added.
The fire occurred in a city with jangled nerves following a Sept. 16 mass shooting at the Washington Navy Yard that left 13 dead, including the gunman, and a high-speed car chase outside the U.S. Capitol on Thursday. The chase ended with a woman being shot dead by police with a young child in the car.
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