I went onto Quora and posed this question, and verified that the concepts embodied in Angel Assassins aren’t that far-fetched: yes, there are contract killers and assassins (duh), and yes they do get employed by governments, industrial giants, multinational corporations, and humans who want other humans killed. And they would be paid with cash, secret accounts or cryptocurrency. However the question of whether the relationship between client and killer would be established on the Dark Web is questionable: law enforcement officials watch for this type of content and will generally set a trap to snare that angry husband wanting his wife offed. Setting up a model where many, many people contribute funds to a contract might make it trickier, much like downloading copyrighted material happens using torrent downloads, where a given piece of content is compiled from many individual sources. So it’s conceivable—but unlikely, since it seems each individual contributor would be liable for prosecution for commissioning a murder.
A New York Times article, Can You Really Hire a Hit Man on the Dark Web? say these sites “have become catch points for real people who are looking to pay to have someone murdered. And a number of men and women are sitting in jail after paying one of these sites — and getting caught by the police.“
