The Tepes were a very attractive couple. MM had turned into an unattractive hulk of a man. Was he jealous?bbm
The same I'm thinking about the shot to her cheek. Did MM want to extinguish her special radiance once and for all?? Had she laughed too often, beaming with happiness? And he had seen it during his stalking on photos, on videos, maybe even live?
MT was beautiful and had rejected him. So her took away her beauty and her life.