Sana Muhammad escaped an arranged marriage and found true happiness with a new man. Until her ex-husband began hunting her down.

James Fairweather lived in a world of video games and violent porn--until he decided to play out his obsessions in real life.

Stephen Port's crimes were brazen, yet he was able to take the lives of four young men before their families helped expose him.

Convicted killer Glyn Dix told new wife Hazel he was the victim of a miscarriage of justice. Then he struck again.

Mark Martin got his kicks from terrorizing Nottingham's homeless community. His ambition? To be the city's first serial killer.