BOSTON -- A manhunt for one of the Boston Marathon bombing suspects was underway across the city and its western suburbs Friday, hours after the other suspect was shot and killed by police, authorities said.
Colonel Timothy Alben, Superintendent of the Massachusetts State Police said the first suspect from Monday's bombing was shot by police in a gunfight following a pursuit that began Thursday night in Cambridge and ended a short time later in nearby Watertown. He said that suspect died at a hospital.
Alben said the second suspect, seen in FBI-released photographs wearing a white cap, is still at large. Authorities urged residents in Watertown, Newton, Waltham, Belmont, Cambridge and the Allston-Brighton neighborhoods of Boston to stay indoors. All mass transit was shut down.
Alben described the second suspect as a light-skinned or Caucasian male with brown curly haird ressed in a gray hooded type sweat shirt.
"We are concerned about securing the area and making sure this individual is taken into custody," he said. "We believe this to be a terrorist. We believe this to be a man who has come here to kill people."
Boston Police Commissioner Ed Davis told reporters the man they are seeking is armed and dangerous. A transit police officer was also critically wounded in the pursuit.
Police did not provide the suspects' names.
A transit police officer was reported in critical condition after being shot.
The manhunt for the marathon bombing suspects turned into hot pursuit at 10:30 p.m., when the two men robbed a 7-11 convenience store on the MIT campus in Cambridge, Alben said. A few minutes later, police found an MIT campus police officer shot multiple times in his car, Alben said.
The police officer died of his injuries at Massachusetts General Hospital.
The suspects then car-jacked a Mercedes SUV, Alben said. Police found the car and the suspects in Watertown, and pursued them into a residential neighborhood where gunfire was exchanged.
Witnesses report hearing between 15 and 50 shots.
Alben said the suspects also threw explosives from the car. Residents, witnesses and media in the area heard at least two large booms.
A Massachusetts law enforcement official, speaking on condition he not be identified by name, said that the suspect who died is thought to be the first suspect in the FBI photos of the alleged bombers, wearing a dark hat.
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