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Here is the latest information in a press release from the Middlesex District Attorney:
Police are investigating a fatal shooting of MIT campus police officer by two men who then committed an armed carjacking in Cambridge, Middlesex Acting District Attorney Michael Pelgro, Cambridge Police Commissioner Robert Haas, and MIT Police Chief John DiFava announced this evening.
At approximately 10:20 p.m. April 18, police received reports of shots fired on the MIT campus. At 10:30 p.m., an MIT campus police officer was found shot in his vehicle in the area of Vassar and Main streets. According to authorities, the officer was found evidencing multiple gunshot wounds. He was transported to Massachusetts General Hospital and pronounced deceased.
Authorities launched an immediate investigation into the circumstances of the shooting. The investigation determined that two males were involved in this shooting.
A short time later, police received reports of an armed carjacking by two males in the area of Third Street in Cambridge. The victim was carjacked at gunpoint by two males and was kept in the car with the suspects for approximately a half hour. The victim was released at a gas station on Memorial Drive in Cambridge. He was not injured.
Police immediately began a search for the vehicle and were in pursuit of the vehicle into Watertown. At that time, explosive devices were reportedly thrown from car by the suspects. The suspects and police also exchanged gunfire in the area of Dexter and Laurel streets. During this pursuit, an MBTA Police officer was seriously injured and transported to the hospital.
During the pursuit, one suspect was critically injured and transported to the hospital where he was pronounced deceased. An extensive manhunt is ongoing in the Watertown area for the second suspect, who is believed to be armed and dangerous.
The case is being investigated by local, state and federal authorities working in cooperation. The Massachusetts State Police Bomb Squad is assessing and removing any potentially explosive devices that may have been thrown on the street in Watertown by the suspects.
The investigation remains active and ongoing.
No further information is available at this time.
Authorities have not officially said if those incidents are related to the Marathon suspects, but the Boston Globe reported that one bombing suspect is in custody and investigators are still looking for the second one.
The release came in the midst of a frightening police search in Watertown, a Boston suburb, where police had arrested one man after an MIT police officer was shot and killed in Cambridge late Thursday night.
No names have been released.
WBZ-TV released video of a man laid out on a street in Watertown overnight, with his arms spread out over his head on the ground as police surrounded him.
The man was then apparently ordered to remove his clothes or had his clothes removed before he was handcuffed and put in the back of a police cruiser.
There’s no official word yet if this is the man under arrest in connection with the MIT shooting or the Boston Marathon bombings.
The chain of events began around 10:30 p.m. Thursday when an MIT police officer was shot multiple times on campus. The officer, who has not been identified, was rushed to the hospital, where he died.
A search of the Cambridge campus ended up moving to nearby Watertown, where dozens of law enforcement officers swarmed the streets amid gunfire and at least one explosion.
Then, one man was taken into custody and police said they were still looking for a second suspect.
As heavily armed officers went home-to-home in a search, the FBI released the newly enhanced photos on its website around 2 a.m. Friday.