PROSPECT HEIGHTS, Ill. (CBS) — Police say a man shot and killed a woman, then turned the gun on himself, in a condo complex in Prospect Heights this week.

Around 3:30 p.m. Monday, police in the northwest suburb were sent to the Lake Run Condominium complex, near Wolf and Old Willow roads, for reports of shouting and quarreling, shots fired, and a woman reporting she was being attacked.

When police arrived, the man and woman were already dead in a fourth-floor hallway.

The woman was identified as Dong “Donna” H. Yu, 42, of the 0-99 block of Old Willow Road in Prospect Heights. She lived in her condo alone and had been a Prospect Heights resident since last year.

The man was identified as Keon Suk Oh, 46, of the 1600 block of North Cypress Point Drive in Vernon Hills.

Police say Yu worked for Oh, but did not specify in what capacity, nor what their profession was.

Police recoverd a Ruger .40-caliber semi-automatic weapon at the scene.

The Sun-Times Media Wire contributed to this report.

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