Justice means that you do something to someone that was doing bad.
PLEASE DON'T HURT ME!!!!
Miss Katherine killed the sheriff because he was going to hang Sam since he kissed her but, it wasn't fair to her because she kissed him back. Also because when the men were burning down the school house he didn't do anything about it. She did JUSTICE!
Miss Katherine became and outlaw and was named "Kissin Kate Barlow". She killed a lot of men because they probably were the one's who killed Sam or she did it to avenge Sam.
Miss Katherine/Kissin Kate robbed people, like this guy but, for some reason she didn't kill him. She rode off on her horse somewhere else.
Kissin Kate imagined Sam with her. He said "I can fix that" to her. She was happy to see him. She touched his face gently and Sam touched her face gently too.