Complex sentence: When his grief continued Janice went so far as to use the internet to expose his children to a Ouija board within their house, this frightened them and cleared a path for Janice to demonstrate that Bobby's grief was affecting his children.
Split into simpler sentences: When his grief continued, Janice went so far as to use the internet to expose his children to a Ouija board within their house. This frightened them and cleared a path for Janice to demonstrate that Bobby's grief was affecting his children.