Tristyn Bailey went missing on Mother's Day two years ago in Jacksonville, Florida. Surveillance video shows the 13-year-old walking with her 14-year-old classmate, Aiden Fucci. Bailey's body was discovered in a secluded wooded area with 114 stab wounds. Fucci pleaded guilty to first-degree murder. At his sentencing hearing, Bailey's sister dropped 114 stones into a jar to represent the number of times the teen was stabbed. Fucci has been sentenced to life in prison.