The Octagonal Raven — L.E. Modesitt Jr.

Being a child of wealth hasn't made life easy for Daryn Alwyn. But then, he didn't want it easy, and he's always been determined to choose his own path, abandoning the possibility of power and leisure with his family's giant Media Network for a solo career, first as a military space pilot, later as a freelance media consultant. Only when he becomes the target of a series of deadly attacks does he begin to realize the true depth of responsibility his heritage forces on him. And when his sister is assassinated and he becomes one of the wealthiest people in the world he learns that his real troubles are only beginning.