Mitochondrial DNA testing of hairs found at the crime scene believed to be from the killer did not match Sledge , and he was declared innocent in January 2015 after serving over 36 years for the crime .
The other informant received similar special treatment .
Mitochondrial DNA testing of hairs found at the crime scene believed to be from the killer did not match Sledge , and informant was declared innocent in January 2015 after serving over 36 years for the crime .
The other informant received similar special treatment .