Eason, Lynette. Danger never sleeps #4

Sequel to: Active defense

"FBI Special Agent Caden Denning is part of the task force assigned to catch a serial killer targeting military families-only he needs Ava Jackson's help to do so. When the killer turns his sights on Ava, the investigation turns into a fight to survive"--

Ava Jackson entered the military shortly after high school, but her mother's illness forced her to request an early discharge. She lost her father while deployed, and there's no way she's going to let her mother die alone. When Ava is attacked after visiting the nursing facility where her mother lives, FBI Special Agent Caden Denning arrives in time to help fight off her attacker. Ava may hold the key to the murders of three families, and Caden needs her help before anyone else is harmed. The hits show a pattern, and clearly the killer has an agenda. But if Caden and Ava can't discover what it is, Ava may be next on the hit list. -- adapted from back cover