What does the grave geomantic criminal mean by "seven kills"?

Seven kills is a term in fortune telling, and eight evils should belong to Feng Shui. If you commit eight evils, it is a problem worth thinking about. People who commit eight evils usually have some difficulties in their families.

Whether you really commit these eight evils or not, you need a Feng Shui master to help you see them on the spot. No one can help you see it online.