The man stared at Jack for a long time, considering him. He glanced over his shoulder at the closed door and sighed. Turning back to Jack, he ran his hand through his hair. He seemed to come to a conclusion. 

"In there," he said nodding towards the door. He stepped past Jack but stopped again, turning back to him. "Careful." And with that vague warning, he turned down the street, walking away with heavy steps.