LYNN – Police are investigating the robbery of the St. Jean’s Credit Union at the corner of Western Avenue and Franklin Street that occurred shortly before 5 p.m. Thursday.At the time, police were searching for a white male with blond hair wearing a white hat with red lettering in his late 20s or early 30s.The suspect reportedly passed a note to a teller and ran away with approximately $300 cash. It was unknown if a weapon was displayed.- Dan O’Brien