CARY (WTVD) -- A Wake County teen arrested last year for threatening to shoot a group of classmates is again in trouble with the law.
This time, he's accused of attacking his grandmother.
The Wake County Sheriff's Office charged 18-year-old Kenneth Halker with assault on a female. Court documents say he grabbed his grandmother by the neck and arm and threw her on the floor.
Last year, Halker was arrested in an assault on a girl in the cafeteria of Panther Creek high school.
RELATED: WARRANT: PANTHER CREEK HIGH SCHOOL STUDENT THREATENED TO SHOOT CLASSMATES
Court documents in that case said he had a hit list and threatened to shoot students at the school