Who wrote the 'murder manual' that inspired a triple murder?

On March 3, 1993, three people were brutally murdered in Silverspring, Maryland: single mother Millie Horn, her young son Trevor, and his nurse, Janice Saunders. There were no fingerprints. The killings were targeted and quick. The killer seemed to know what they were doing - almost like they had read a book about it. Well, it turns out, they had. Ten years earlier, Paladin Press published a book called 'Hit Man: A Technical Manual for Independent Contractors'. It detailed how to kill and get away with murder. Despite attempts to have the book taken off shelves, many argued that the first...