Dream About Escaping Trapped Classroom

This dream was about

It was a small classroom, but we didn't learn. We were trapped until one guy was thinking about escape and confided in me. He said the only way out was to kill the teacher. I wasn't so sure, so he confided in another and they both agreed. I decided to let them plan it and leave me out as I wanted no part. I sat with another person who had a little dog that was so sweet and kind. I stayed with them until the plotters had figured it all out. I didn't completely know the plan and I didn't want to. They took a tie I was wearing and one entered the room in which the teacher was on her phone. They closed the door, but I knew she was going to die and how. Shaken up, I went back to where the dog was but it was gone. Nobody seemed to know where it was. Then nthe killers walked out and shouted that we were free. Everyone excitedly ran out the now broken door but I stayed in shock. Nobody else seemed to care that this was someone's life taken away. I then looked at where they put her body, a sink full of water. I felt horrible and knew that this wasn't the option but it was too late. Then in the corner of the sink there was a sack, but it started moving so I quickly took it out to save whatever was put inside to drown. It was the dog, soaked and shivering, barely alive. I helped the dog to breath again and with it I sat in the corner and waited until there were red and blue lights. They came in to investigate and found me in a ball. They asked me what happened and where all the mental patients were. All I said was "monsters" and pointed to the sink. One officer went to check it out and one cane to comfort me. He asked me questions but I didn't know most of the answers. I didn't even know anyone's names. The only thing I knew is two lives could've been lost, and in the only one who cared.