1979 unsolved murder solved again murderer escapes justice for this crime.

"The cold case slaying of a 12-year-old girl in Texas more than four decades ago was solved after authorities used an advanced DNA tool to identify her killer, authorities said Monday.
Gerald Dwight Casey, who was executed in 2002 for an unrelated capital murder case, was linked to Lesia Michell Jackson’s 1979 sexual assault and homicide with the help of a DNA technique known as “M-Vac,” the Montgomery County Sheriff’s Office said in a statement.
The technology, originally developed to identify food contamination but now used to collect DNA from porous and other difficult surfaces, was used to process samples discovered on Lesia’s clothing, the sheriff’s office said."

https://www.msn.com/en-us/news..../crime/12-year-old-t