Trace Evidence In Tarrant County

Sheriff Carley Matheson had her hands full: A sixteen-year-old unsolved murder and a strong hunch that the killer had resurfaced and struck again. As if things couldn't get any worse, the Texas Rangers had sent Sloan McKinney - the one man she'd always tried to keep at a distance - to spearhead the investigation.
Now the only way to keep the citizens of Justice, Texas, safe - and solve two connected crimes - was to join forces. But someone resented Carley and Sloan digging up the past, and before long two of Texas's finest found themselves caught in the crosshairs of a murderer.