Lincoln Police are investigating a burglary at the Sun Mart grocery store inside Van Dorn Plaza off South 48th Street. Lincoln Police Officer Katie Flood said an officer on patrol was checking businesses when he saw the store’s front door glass smashed out.  Surveillance video shows the break in happened just before 11:30pm Wednesday, where the suspect threw a brick and took off with an unknown amount of cash from the register.   Flood says the only description they have is a white man wearing all black clothing.