State police detectives and prosecutors from the Norfolk District Attorney's Office say a shooting suspect is in custody.
Chesna was trying to locate the driver of the vehicle, Morrissey said, when he spotted Lopes allegedly vandalizing a home. At that point, Chesna was struck in the head with a large rock and his firearm was taken from him.
That's when Lopes threw a stone at the 42-year-old officer and shot him multiple times with his own gun.
Emanuel Lopes' mug shot from a 2017 drug arrest.
Chesna was also rushed to South Shore Hospital, officials said.
Chesna has been remembered by his colleagues as a "great family man and officer".
She heard someone yell three times, "Get on the ground", she said.
Chesna was a military veteran who served in Iraq and Afghanistan, said Weymouth Police Chief Richard Grimes. Chesna was from Weymouth and graduated in 1994 from Weymouth High School.
Chesna's father-in-law, Francis Doran, 78, of Marshfield, said he is anxious for Chesna's two young children, who are left without a father.
Chesna was a veteran of the US Army, which he joined "to open doors to become a police officer", Grimes said.
"I hired Chesna six years ago tomorrow", he said, describing law enforcement as the ideal job for the father of two.
Chesna's body was transported from the hospital to the state medical examiner's office in Boston.
A MA police officer has been critically wounded, shot several times while in a foot chase with a suspect following a vehicle crash. She was not identified, pending notification of next of kin, reports stated.
Law enforcement groups as close as the Boston Police Department and as far as ME are taking to social media to express their sadness.
Police say Lopes was driving a white BMW Sunday morning when he crashed and left the scene.
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