How I Met a Man Who Was Leaving My Sub Shop

Charles is an assistant manager at a sub shop. John was only working for us for about a month when he called us in to pick him up from his roommate's house because of some problems they had. He left all his personal belongings behind along with his clothes. A couple of days go by and I won't work in the middle of my shift and I see this really tall middle aged man walking the store to get a sub. As I begin to ring him out he kind of stares at me and I look back to ask him if I knew him. He asks about John and this creepy vibe just radiates from him and I asked him what kind of affiliation did he have with John and