75-year-old Detroit woman thanked police officers for saving her from falling, buying groceries, and preventing ER visit.

75-year-old Detroit woman Denise Willingham thanked four police officers for saving her from falling and buying her groceries. The incident occurred as she attempted to enter a Rite Aid store with her walker. The officers' swift action prevented her from needing an emergency room visit and earned them the title of "guardian angels" from the grateful woman.