Simon Sue is a former charismatic senior student at Palmer High School in Colorado springs who was sentenced to a 53 years in prison for being the mastermind and luring Isaac Grimes into murdering Tony Dutcher in 1999. According to Grimes, the crime amounted to a twisted version of the children's game, "Simon says".

Isaac Grimes and Tony Dutcher were former best friends who began to drift apart in high school. On a sleepover trip at Dutcher's grandparents' remote mountain home, Grimes slit Dutcher's throat while he lay in his sleeping bag. Grimes claimed that he was forced to commit murder by Simon Sue, a senior at his high school.