Bodyguard — William C. Dietz

He lives in a world where technology grows too quickly for the mind to comprehend.

Where huge corporations expand outward into the far reaches of space.

Where things of the past are swiftly deleted to make way for the future.

But some things never change. Like violence. Corruption. Murder. And that is how he makes his living. He offers protection--for a price--and he's the best that money can buy. His skills have been honed to perfection, his memories blocked by a metal plate in his cranium. He is a lost soul with a missing past. But he still remembers how to fight And how to kill...