Dream about killing someone with garden shears?

I had this dream earlier today when i was having a catnap. First the dream started off pretty normal just me and like three ppl standing around talking. Then somebody got pissed off and cut some guys throat with some rusty garden shears. Its weird because at first i was watching him- then i became him and i was watching myself in the corner and the look on my face was completely not caring. It was almost as if i was encouraging my alter ego. And the most disturbing part of this was when i ws killing him i remember thinking"why do people always try to fall on u when they die are they just trying to be a pain?" We were in a white tile room almost like a hospital but more like an insane asylum. There was another person in the room that seemed to be completely undisturbed and unharmed i don't know the gender of the person or who they were but i remember feeling like that person was my hostage. They weren't tied up though.