Authorities say DC gunman held long-standing feud with building management
The 55-year-old medical doctor harbored a long-standing grievance with the building's condo association, according to court documents.

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Authorities say DC gunman held long-standing feud with building management (opens ABC News in a new tab)
The 55-year-old medical doctor harbored a long-standing grievance with the building's condo association, according to court documents.

