Boston bombers ( Shoot -out with bombing suspects - one captured - suspects armed with grenades )

BOSTON—A late-night police chase and shootout has ended with one Boston Marathon bombing suspect being captured here, the Boston Globe reports. Meanwhile, an intense manhunt is underway for a second suspect in the terror case.
Federal agents swarmed neighboring Watertown after local police were involved in a car chase and shootout with at least two suspects. During the pursuit, officers could be heard on police radio traffic describing the suspects as having grenades and other explosives.

Authorities identified the surviving Boston bomb suspect as Dzhokhar A. Tsarnaev, 19, of Cambridge, Mass., and said that the suspects were brothers

One suspect reportedly escaped capture, and another was shot by police and taken to a local hospital. Another man was seen sprawled on the ground in footage shown on WHDH-TV.
The FBI has not confirmed a connection between the events in Watertown to the twin explosions that killed 3 people and injured 170 others at the Boston Marathon on Monday. But according to an alert sent issued to fellow officers, the suspect who remained at large was referred to as the "one with the white hat" seen in the photos released by the bureau on Thursday.
The suspect, described on scanner traffic as a "white male wearing a gray hooded sweatshirt with black curly hair, possibly with an assault rifle and explosives," as police in Watertown, Newton, Brighton and Cambridge were put on high alert.
Worried residents in Watertown, a suburb about 10 miles from downtown Boston, were ordered to stay indoors and turn off their cell phones out of fear that they could trigger improvised explosive devices.
Dozens of police officers, many of them off-duty, searched backyards in search of the second suspect, and a police perimeter of several blocks was established. K9 units and SWAT teams searched homes on Spruce Street as officers searched an SUV the suspects had abandoned.
The Watertown shootout occurred after a shooting at the Massachusetts Institute of Technology late Thursday. An MIT police officer was shot and taken to a hospital where he was pronounced dead, local reports said. The campus was placed on lockdown for several hours, and students were told to remain indoors.
Shortly before 2 a.m., MIT issued a statement on its website saying that the suspect "in this evening's shooting is no longer on campus. It is now safe to resume normal activities. Please remain vigilant in the coming hours."