SALT LAKE CITY — A man accused of killing a woman by hitting her car head on while driving the wrong way has been charged in a separate incident. Prosecutors now want Justin Wayne Robertson held in the Salt Lake County Jail as they prepare to file potentially more serious charges against him. Robertson, 35, of Cottonwood Heights, was charged Thursday in 3rd District Court with aggravated assault, a third-degree felony, for an alleged domestic violence incident that prosecutors say happened on March 30. He is accused of attacking his aunt, whom he lives with, when she told him to "quiet down" while he was "screaming and being extremely loud," according to charging documents. He hit his aunt in the head, face and chest, strangled her, and pulled her hair, the charges state, causing a cut on her chin and bruising and swelling all over her face.