In 2007, dismembered human remains were found in a burnt-up black bag on the side of the road in Georgia. Seventeen years later, the remains were identified as 24-year-old Nicole Alston. For years, her disappearance remained a mystery. All until now. Angel Thompson, Alston's girlfriend, is not only accused of killing the 24-year-old but also of assuming her identity and posing as her for over a decade.Why did she do it, and why are investigators calling on the public's help?The Shade Room's Justin Carter is delving into it all on 'TSR Investigates.