A doctor working in the intensive care unit of a Honolulu hospital failed to recognize her own father as she helped treat him for what proved to be a mortal head injury.

Dr. Shirley Domingo said Friday she was shocked to learn the identify of the 54-year-old beaten man later Tuesday from her brother.

Damaso Domingo died Thursday at The Queen's Medical Center.

After talking with witnesses, police say they are seeking two men seen walking away from the wounded Domingo after an "exchange of words."

Dr. Domingo says she hadn't been in touch with her father for a while. She says the last time she had seen him was in July when she returned from medical training on the mainland.