Authorities say it happened inside a home in the 3200 block of Champions Drive in Pike Creek. Investigators say the trooper called police to say that shots had been fired.
There they found the trooper, only identified as a female eight-year veteran of the force, severely battered.
They also found her boyfriend, 43-year-old Maurice Ifill of Owings Mills, Md., with a gunshot wound to the upper torso.
Shooting Involving Del. Trooper
Investigators say the trooper and Ifill were involved in a "violent physical altercation." The trooper retrieved her service handgun and fired.
Ifill was taken to the hospital where he was pronounced dead. An autopsy is scheduled.
The trooper was hospitalized with serious injuries and is in stable condition, state police say.
An investigation into this incident continues.
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