WATCH LIVE: Coverage of Manhunt for Boston Bombing Suspect
WATERTOWN, Mass. (WACH/AP) -- Police say one of two suspects in the shooting of a Massachusetts Institute of Technology police officer is dead and a massive manhunt is underway for another, who is believed to be tied to the Boston Marathon bombing.
A new picture of suspect number 2 has been released by Boston Police. In the photo he is wearing a gray hoodie sweatshirt pulled up on his head. Police say he is a "threat to anybody that might approach him." The new photo was taken at a 7-Eleven in Cambridge, just across the river from Boston.
The Associated Press has identified the second suspect as Dzhokhar A. Tsarnaev living in Cambridge, Mass. The AP also reports the bombing suspects are originally from a Russian region near Chechnya, but have been in the U.S. for at least a year. Fox News is reporting the dead suspect is the brother of Dzhokhar Tsarnaev.Shortly after the MIT officer was shot dead Thursday night, police got a report of a carjacking in Cambridge, just outside Boston. One of the two suspects in that officer's shooting was killed. Police say of the at-large suspect, "We believe this to be a terrorist."
The FBI said it is working with local authorities to determine what happened.
The MIT shooting on the Cambridge campus Thursday night was followed by reports of violence in nearby Watertown, about 10 miles west of Boston.
State police spokesman David Procopio had said there was a "strong possibility" the incidents are related.
The MIT officer had been responding to report of a disturbance Thursday night when he was shot multiple times, according to a statement from the Middlesex district attorney's office and Cambridge police. It said there were no other victims.
In Watertown, witnesses reported hearing multiple gunshots and explosions at about 1 a.m. Friday. Dozens of police officers and FBI agents were in the neighborhood and a helicopter circled overhead.
State police spokesman David Procopio said, "The incident in Watertown did involve what we believe to be explosive devices possibly, potentially, being used against the police officers."
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!"
MIT said right after the 10:30 p.m. shooting that police were sweeping the campus in Cambridge and urged people to remain indoors. They urged people urged to stay away from the Stata Building, a mixed-use building with faculty offices, classrooms and a common area.
Hours later, MIT, which has about 11,000 students, said the campus was clear but the shooter was still on the loose.