KG2124

I was playing as Arthur at the time and I came across the Charlotte stranger mission, I helped her hunt then after that I continued on with the main story, as I was too focused on the story I forgot to head back over to check on her as Arthur. When I started playing as John Marston I saw that on the map it was showing Charlottes name so I decided to head over to her cottage but when I got there she was dead? Was I supposed to go back as Arthur before I start playing as John?