At 7:32 a.m. Sunday, when the Weymouth Police Department received a call about an erratic driver near South Shore Hospital. Responding officers came across a single-car accident nearby involving a BMW. The driver had been seen leaving the scene on foot.
Officer Chesna, the first on the scene, began looking for the driver in the area. The suspect(Lopes)Lopes was observed throwing rocks at a home.
Off. Chesna got out of his car, drew his firearm, and commanded Lopes to stop. Lopes is then believed to have attacked Chesna, striking him in the head with a large stone, according to the DA’s office. Officer Chesna fell to the ground.
Lopes then retrieved Chesna’s firearm and discharged it several times into his head and chest, approx. 4 times.
Another officer arriving at the scene began to return fire at Lopes, who was struck below the knee on one of his legs.
Lopes then fled on foot, still carrying Chesna’s gun, and was pursued by Weymouth police officers.
During the chase through the yards of Burton Terrace it is believed that Mr. Lopes discharged officer Chesna’s firearm an additional three times, striking a local resident in her home. These wounds were fatal to her.
Lopes was taken into custody soon after he fired the shots and transported to South Shore Hospital for treatment of injuries that were not life-threatening.
Off. Chesna was also taken to the nearby hospital, but did not survive his wounds.