Sure was. The book was meticulously researched and documented to present an accurate account of the tragic events it portrays. Truman Capote spent a lot of time interviewing and gathering information to make it as true to life as possible.
One aspect that makes it remarkable is its impact on the true - crime genre. Before 'In Cold Blood', true - crime stories were often more about the facts of the case. But Capote humanized everyone involved. He showed the complex relationship between the killers, their upbringing, and the circumstances that led to the murders. Also, his writing style, which was vivid and engaging, made the real - life story accessible and gripping to a wide audience.