WASHINGTON (AP) — A Washington, D.C., woman was stabbed to death while working her second job as a dog walker, leaving a small yellow pit bull mix howling nearby as neighbors rushed to her aid.

News outlets report 27-year-old Margery Magill was killed Tuesday night as she walked the dog back to its apartment. Her screams alerted a neighboring couple who attempted to help; Magill later died at a hospital.

District police say 24-year-old Eliyas Aregahegne was arrested that night at an area apartment and charged Wednesday with first-degree murder while armed. Police didn’t immediately release a motive, but said sexual assault and robbery have been ruled out and there’s no connection between the Magill and Aregahegne.

“This week, Margery Magill, a friend, and former TurkishWIN teammate, was killed in a tragic accident in Washington DC. She had left her mark in our Marketing Team where she was the lead. Margery was smart, kind and funny. We will miss your laughter and grace, Margery. Rest in peace,” TurkishWIN posted.

The Washington Post says authorities are trying to determine if Aregahegne has mental health issues.

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