Police in Middle Tennessee have arrested a 21-year-old man on charges that he beat and stabbed his father to death and injured his mother.

Murfreesboro Police said they were called to the home just before 9 p.m. on Wednesday, arriving to find DeJahn Tyson standing over his father with something in his hand.

Officers immediately rendered aide to 54-year-old Perry Tyson, who had blunt force and stab wounds. Rutherford County Emergency Medical Services, however, pronounced him dead when they arrived.

DeJahn Tyson’s 55-year-old mother is listed in stable condition at a hospital with non-life-threatening stab wounds.

Police said two other people in the home at the time of incident weren’t injured, and investigators have not yet determined a motive.

DeJahn Tyson, charged with murder and attempted murder, is being held at the Rutherford County Adult Detention Center on a $1 million bond. He is due in court on April 28.

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[Featured image: DeJahn Tyson/Rutherford County Adult Detention Center]