This unnamed man owns a bar.
This man was about to close his bar when the last guest, Benjamin, refused to stop playing on the arcade. He told Benjamin that he's going to take out the trash and she should be gone before he gets back.
When he returned, the man found Benjamin's dead body and strange burn marks on the wall. Even though the police said the victim died from a stab wound, the man was perplexed over the lack of blood on the floor.
He was soon visited by two FBI agents, who were Sam and Dean Winchester. They talked to him about the dead body and he expressed his confusion. During the questioning, he was abruptly told to leave by a third person, Castiel. Dean then escorted the man out of his bar.