The thing is, there aren't actually any connections or boss. It's totally random. I had a sim claim to be the cousin of someone. The family tree firmly reveals that this is false, because the sim's parents and even their grandparents do not have siblings.
Have him killed. Clearly he's up to something.
Lulz. You caught me off guard with that one! I choked on my carrot.
Trycyln, I just played your lot. My sim family is enjoying it very much. I really like the pool and the changing table in the bathroom is a great idea.