Man charged with killing Peterson's son pleads not guilty of assault
JUL 24, 2014 5:59p ET
Twenty-eight-year-old Joseph Patterson was arraigned Thursday in Sioux Falls on charges of aggravated assault and kidnapping. He's accused of attacking the mother of Tyrese Ruffin in June and holding her against her will for over an hour.
Patterson is facing second-degree murder, manslaughter and aggravated assault charges for the boy's death in October 2013. Trial on those charges is scheduled for October.