(Willmar, MN) — A man is facing assault charges after a stabbing earlier this week at a hospital in Kandiyohi County. Thirty-one-year-old Derrick Whelan of Willmar was charged with second and third-degree assault yesterday. Investigators say Whelan was taken to Centra Care Rice Memorial Hospital on Monday for treatment of a mental health issue. He allegedly used a folding knife to stab a hospital employee multiple times before he was restrained. His bond was set at 200-thousand dollars.