A boy and his grandmother were killed Monday night in a boating accident on the south end of Lake Monroe near Bloomington. Police say a 23-foot speed boat pulling a wakeboarder collided with a fishing boat carrying a Bedford couple and their three grandsons. Susan Collier, 51, and Gage Pruitt, 8, died of their injuries. Collier’s husband was treated for leg injuries; the other children were unharmed. It's still not clear why the ski boat, with 19-year-old Winston Wood at the helm, ran into the smaller vessel. Police say no one appeared to be drinking. As of this morning, no charges had been filed. Fox59 will have more at 4 p.m.