A man found suffering from a stab wound on Friday night in Peabody Square and later identified as David Abrain, 52, of Roxbury, died from his injuries after being transported by Boston EMS to a local hospital, according to Boston Police, who arrested a 38-year-old Dorchester man for the murder on Saturday.

Prosecutors say that Abrain was stabbed once in the arm, but the injury severed a major artery and caused his death.
Officers were called to the scene at 1879 Dorchester Ave. just before 10 p.m., according to a Boston Police account of the incident. Police shut down streets around the scene for a couple of hours after the initial call and response.

On Saturday, detectives arrested David Adams, 38, of Dorchester, who, police said, matched “the description of the suspect from last night.” He was arraigned for the murder in the Dorchester division of Boston Municipal Court on Monday and ordered held without bail.

According to prosecutors, Adams was seen on video “with a “distinctive colored backpack disposing of the murder weapon around the corner from the scene.” The stabber was dressed “in a black tee, black shorts, distinctive red socks, and walked with a distinctive gait/limp.” According to an account from the DA’s office, a homicide detective canvassing the area the next day encountered Adams in a convenience store, took note of his clothes and the same “gait/limp.” The detective took Adams into custody after watching him meet up with a female at a nearby park.

“Between the two of them was the same distinctive backpack that the suspect retrieved immediately after the stabbing,” the prosecutors allege.

Adams is due back in court for a pre-trial conference on Sept. 26.

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A 38-year-old man was shot to death on Saturday night just before 10 p.m. at Washington Street and Morse Street in Dorchester, according to Boston Police. The victim was later identified as Jashun Cooley of Roxbury. He was taken to a local hospital, where he was pronounced dead, Boston Police said. No arrests have been reported.

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Boston Police say they made a series of unrelated arrests on Saturday of people in the vicinity of the Caribbean Carnival parade, some found with loaded guns. They included a 16-year-old and two companions who were detained after police say they were found to be carrying two guns in a backpack, one loaded with 18 bullets.

The first festival-related arrest happened at 11:15 a.m. at Blue Hill Avenue and Columbia Road, when, police say, a man from Hyde Park started walking “at a fast pace” when officers approached and handed off his gun loaded with nine bullets to a woman from Brighton. His accomplice, police say, tried to fight her way out of arrest and was also found in possession of “eleven small plastic bags” of crack.

The last arrest came at 6:45 p.m., when officers responded to a fight, also at Blue Hill Avenue and Columbia, in which one man had been knocked unconscious. According to the BPD account, “as officers were on scene, they observed a male individual with a satchel strapped across his body. Officers immediately observed what appeared to be an outline of a firearm.” Police say it was, in fact, a “Ruger Security-9 loaded with nine rounds. Officers further observed the firearm’s serial number was obliterated.” They arrested a 17-year-old for the gun possession charge.

Earlier in the afternoon, gang-unit officers on the lookout for Dayshawn Grant, 34, of Roxbury, because he might have a gun, found him – and a gun – walking with a group in the area of Blue Hill Avenue and Seaver Street. Police say Grant was toting a “Ruger EC9s with one round in the chamber and six rounds in the magazine.” Among the charges he faces is illegal possession of a loaded firearm, fourth offense.

Also Saturday, police say, officers arrested a 15-year-old for the gun loaded with 21 rounds they say he had in a backpack, in the area of Washington Street and Talbot Avenue in Codman Square, shortly after 2 a.m. And a traffic stop on Warren Street in Roxbury, which began when somebody in a passing car threw or squirted something at officers in a parked cruiser, ended with a man’s arrest for the gun loaded with ten bullets. Police added: “Detectives also recovered a squirt gun from inside the vehicle.”