Sad case about a man shot dead in Ohio

I have a question about vicarious liability you might be able to help me with. (Otherwise I will have to send this question to Prof. Childs) I know that vicarious liability mostly concerns itself with Master to Servant, Employer to Employee relationships and how the actions of the junior ie: servant or employee are reflected on the senior ie: Employer or Master. My question has to do with Pusey v. Bator (the second case in the chapter) What is the status of Eric Bator, the security guard? I know the lower courts decided he was contracted by the Greif Brothers through YSP but what is his status level because of the work being contracted? Is he Eric the employee? Or Eric the employer? Or, because he is all alone on his security shift, does that make him servant Bator? or Master Bator?
Get back to me on that-PT