On January 12, 1995, in Knoxville, Tennessee, 19-year-old Colleen Slemmer went for a walk with her friend, 18-year-old Christa Pike. Suddenly, Christa turned on Colleen, accusing her of flirting with her boyfriend. Then, the words turned to shocking blows. An enraged Christa used a box knife to cut her rival's throat and a mini meat cleaver to inflict more havoc. Half-naked, Colleen crawled through her own blood begging for her life. In the middle...