Guenivere

“The scientists. The technicians. Everyone you needed to make it happen. They actually had to do this. They had to watch the video of people dying all over Eros. They had to design those radioactive murder chambers. So unless you managed to round up every serial killer in the solar system and send them through a postgraduate program, how did you do this?” “We modified our science team to remove ethical restraints.” Half a dozen clues clicked into place in Holden’s head. “Sociopaths,” he said. “You turned them into sociopaths.” “High-functioning sociopaths,” Dresden said with a nod.”
― James S.A. Corey, Leviathan Wakes