Two young men, armed with guns and explosives in what appeared to be backpacks, engaged in a violent standoff with dozens of police on a street in Watertown, Mass., Thursday night, a resident said. […]
The two shooters, he said, had a large and unwieldy bomb. “They lit it, still in the middle of the gunfire, and threw it. But it went 20 yards at most.” It exploded, he said, and one of the two men ran towards the gathered police officers. He was tackled, but it was not clear if he was shot, Mr. Kitzenberg said.
The other, he said, got back into the SUV, turned it towards officers and “put the pedal to the metal.” The car “went right through the cops, broke right through and continued west.”