"Dean." Sam said, pointing to a car not too far down the road they were just on. It didn't seem anyone was inside...especially since it was wrapped around a tree. Worried, Sam ran over to the car to assess what happened. There was blood on the passenger window as well as the steering wheel indicting whoever was in the car was injured. 

Sam looked around for clues as to what happened to the driver and passenger. "They couldn't have gotten far." He said before a wounded cough rang out towards the direction of the warehouse.