David Diegert is an agent with Crepusculous.
More accurately, he is an assassin. He kills people at their direction and he is very, very good at it. And they are always, it seems, coming up with names of people they deem worthy of being killed.
Crepusculous is an unofficial organization. It does not exist per se and it would be difficult to legally prove since there is no real headquarters for it and no masthead on any paperwork. But it does exist and it is extremely powerful and terribly dangerous.
The name is defined as "of, resembling, or related to the twilight", as in "a crepuscular animal is one that is active primarily during the twilight period". In the first recorded adventure of Diegert, we are told that "this elite organization, comprised of four men, represented the smallest percent of the world's wealthiest people. Their combined wealth encompassed 75 percent of the world's resources. Their ability to influence governments, markets, and the global economy made them the most powerful people on earth. All four of the men were practically unknown in the media, largely because they owned most of the media outlets in the world and made sure that tawdry gossip and investigative news stories were focused on the few competitors they had. Crepusculous meant 'in the shadows', and from their clandestine positions, these men controlled the world."
In the pages of the adventures we have of Diegert, a 6'2" muscular man with a high school education and no real training in anything other than fighting and killing, we are shown how he goes from a young man just laid off from his dead-end job, out of money, living at home with his extremely abusive father to becoming one of the most deadly killers in the world.
We learn how he comes to work for Crepusculous. And then against. And then back to for. And then ... you get the picture.