Detective Sean Reilly is a fictional character known for his role in crime novels. He often works in urban settings, solving complex cases that involve various criminal activities. His character is typically portrayed as intelligent, resourceful, and dedicated to justice. Reilly's investigations often lead him to uncover hidden truths and connect with other characters, such as victims, suspects, and witnesses. His methods may include interviewing people, analyzing evidence, and using technology to solve crimes. The stories featuring him often highlight themes of morality and the challenges of law enforcement.