NEW : Philip Nelson faces one count of 1st-degree assault , one count of 3rd-degree assault . NEW : Police are looking for another suspect , identified as a white male in his early 20s . NEW : Nelson is suspected of attacking a former linebacker at Minnesota State University . Advertisement - STORY CONTINUES BELOW Isaac Kolstad graduated in December ; his family describes him as a caring man .
NEW : Philip Nelson faces one count of 1st-degree assault , one count of 3rd-degree assault . NEW : Police are looking for another suspect , identified as a white male in his early 20s . NEW : Nelson is suspected of attacking a former linebacker at Minnesota State University . NEW : Isaac Kolstad graduated in December ; his family describes him as a caring man .