Detective John Stillman is a fictional character from the television series Cold Case. He is known for his dedication to solving long-unsolved cases, often revisiting old evidence and interviewing witnesses to uncover new leads. His character is portrayed as compassionate and determined, reflecting a deep commitment to justice. In the series, Stillman works alongside a team of detectives, including Lilly Rush, who is the main protagonist. Together, they explore the emotional and psychological aspects of the cases they investigate, often revealing the impact of crime on victims and their families.