Trace Evidence in Tarrant County

Sheriff Carley Matheson had her hands full:A sixteen-year-old unsolved murder and a stronghunch that the killer had resurfaced and struck again.As if things couldn't get any worse, the Texas Rangershad sent Sloan McKinney—the one man she'dalways 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 joinforces. But someone resented Carley and Sloan diggingup the past, and before long two of Texas's finest foundthemselves caught in the crosshairs of a murderer.