I stared at a double killer's rat-like face in the dock and became convinced he had more victims... police were warned that day - but did nothing, writes JOHN STURGIS

John Sturgis recounts his chilling encounter with Robert Napper, the man convicted of murdering a young mother and her daughter, describing him as having a "rat-like face" that made him suspect Napper had more victims. Sturgis reveals that police were warned of Napper's potential for further crimes on the same day, but they failed to act. This story underscores the critical importance of timely and effective law enforcement responses to prevent further tragedies.