From there, the two suspects carjacked a man in a Mercedes-Benz, keeping him with them in the car for half an hour before releasing him at a gas station in Cambridge, police said. The man was not injured.
Authorities said both suspects were in the Mercedes when they encountered police, and then hurled explosives and exchanged gunfire with officers.
Miller reported that the explosives thrown at officers was the same type of pressure cooker bombs that were used in Monday’s marathon attack.
That’s when police said a transit police officer, 33-year-old Richard Donohue, was seriously injured. Tamerlan Tsarnaev was also critically injured during the exchange with police and later died at a hospital, authorities said.
His brother, Dzhokhar, then got back into the car to escape, backing over his brother’s body in the process, CBS News reported.
Five blocks away, Dzhokhar hopped out of the car and fled on foot, police said. Watertown residents reported hearing sounds of the intense gunfight and explosions at around 1 a.m. Friday.
Boston cab driver Imran Saif said he was standing on a street corner at a police barricade across from a diner when he heard an explosion.
“I heard a loud boom and then a rapid succession of pop, pop, pop,” he said. “It sounded like automatic weapons. And then I heard the second explosion.”
He said he could smell something burning and advanced to check it out but area residents at their windows yelled at him, “Hey, it’s gunfire! Don’t go that way!”
Boston, Surrounding Areas On Lockdown
Throughout the day Friday police urged Boston residents to stay in homes as the hunt for the bomb suspect continued. Residents in Watertown, Newton, Waltham, Belmont, Cambridge and the Allston-Brighton neighborhoods of Boston were also told to stay indoors.
Public transit in Boston was suspended before being restored by Gov. Patrick. Amtrak service also temporarily suspended between Boston and New York before limited service was eventually restored. Peter Pan Bus Lines suspended service to Boston, and Megabus canceled buses between Boston and other cities.