WATCH: Cop Walks in on Man Robbing Drug Store

Early this morning, Dayton, Ohio police officer Joshua Campbell walked into a Walgreens pharmacy to pick up a surveillance tape of a robbery that took place at the store three hours earlier when he noticed 55-year-old Donald Cotten attempting to rob the joint! A struggled ensued and Donald punching the officer several times in the head and face. A store employee helped the office take Donald down