Not This Road by Blake Pierce

Texas Ranger (and part Native American) Rachel Blackwood, fierce and resilient, must cross the harsh Texas landscape while tracking the most notorious serial killers. Along the Rio Grande in a quiet border town, a string of murders is initially dismissed as part of a smuggling operation. Yet as Rachel delves deeper into the investigation, she begins to unravel a sinister web of secrets that strikes too close to home—leading her to the very ranch where she grew up.