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    Man held in South Boston slaying

    A man from South Boston is expected to be arraigned Monday on murder and home invasion charges in the death of Barbara Coyne, 67, who authorities said was found fatally stabbed inside her South Boston home one week ago.

    Timothy Kostka, 26, was identified as the murder suspect by forensic evidence and information from witnesses, Boston police said in a statement Sunday.

    He was already in custody on an unrelated charge when a warrant was issued for his arrest, said Jake Wark, a Suffolk District Attorney spokesman.


    Wark declined to say more about the case or what the previous charge was and when Kostka had been taken into custody.

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    Authorities declined to say where in South Boston Kostka lives.

    More details about the case are expected to be released at Kostka’s scheduled arraignment Monday in South Boston District Court, officials said.

    The homicide has shocked and enraged neighborhood residents.

    Last Monday, at about 10 a.m., police found Coyne suffering from stab wounds in her first-floor home at 737 East Seventh St. She was later pronounced dead at Boston Medical Center.


    No obvious signs of forced entry into Coyne’s home were found, police have said.

    Autopsy results ruled Coyne’s death was a homicide from a “sharp force injury.’’

    Coyne’s relatives have not been reached for comment since her death.

    But Boston police issued a statement Sunday on their behalf, extending gratitude to police, the district attorney’s office, and “for the overwhelming expressions of condolences and support over the past week.’’

    “Barbara Coyne was a beautiful, compassionate, loving wife, mother, grandmother, sister, aunt, and friend who will be sorely missed but never forgotten,’’ the family’s statement said.


    State Senator Jack Hart, who represents South Boston, said last Monday that one of Coyne’s daughters is married to Police Superintendent William Evans, the brother of former police commissioner Paul Evans.

    “She’s a great community person, and it’s a tragic death that she suffered,’’ Hart, who could not be reached Sunday, said last week. “A death like that in any neighborhood in the city is difficult, but people are somewhat shocked here, because we don’t see these kinds of things in that part of town. The people that live in South Boston are wonderful, and this senseless crime is an outrage.’’

    Coyne’s killing was the first in a series of four homicides in four days in Boston last week.

    The other three victims died at Boston Medical Center after each was found with apparent gunshot wounds, police said. No arrests have been made, and few details have been released in those cases.

    On Tuesday, Dinorris Alston, 30, of Boston, was found inside a car at a Roxbury gas station. On Wednesday, Demitri Jones, 20, of Boston, was found outside in Hyde Park. On Thursday, Kanagala Seshadri Rao, 24, a native of India, was found outside in Allston near where he was living while attending Boston University’s graduate school.

    Matt Rocheleau can be reached at Derek J. Anderson can be reached at