From the Demon's nephew:
The violence, Ben Anderson said, stemmed from a dispute over money, and a long-standing fight between Michele Anderson and her parents. He said his aunt had been fighting with her parents since she was 13 and was angry because she didn't think her parents showed her enough love.
"She had a different way of thinking," Ben Anderson said, speaking from his car after dropping a memorial wreath off at his grandparents' home Wednesday night. "My grandparents had a lot of money. She had lived on the property rent-free her whole life, and they were just trying to help her out."
That was my first thought when I read about this.