Police officer, bystander fatally shot near Boston

Editor's Note: (February 16, 2024) Since this story was published, Emanuel Lopes was found guilty of murder in the fatal shootings of Officer Michael Chesna and bystander Vera Adams, along with other charges, including two counts of assault with intent to kill for shooting at responding officers, according to the Norfolk District Attorney's Office. He is expected to be sentenced March 19.

A policeman near Boston was fatally shot with his own service weapon Sunday morning by a man who used the same gun to kill a female bystander in her home, authorities said.

Weymouth Officer Michael Chesna, 42, responded to an "erratic driver" call about 7:30 a.m., police said. He found a car crashed and a man vandalizing a home.

Chesna drew his weapon and told the man to stop, according to Norfolk County Assistant District Attorney Greg Connor. But instead, officials said, the suspect, Emanuel Lopes, threw a stone at Chesna, which hit him in the head and knocked him down.

Lopes took Chesna's gun and shot him several times in the head and chest, Connor said.

Officers fired at Lopes, hitting him once in the leg, Connor said. They chased him as he shot the gun three times, killing a female resident in her home, Connor said.

Police then apprehended Lopes and took him to South Shore Hospital for treatment of his wounds, which are not life-threatening.