Deathwatch (Broslin Creek #1)
Dana Marton

Murphy Dolan is in the Army Reserves, returning from his 2nd tour of duty, only to find a stranger hiding in his house. She's scared spitless. He's completely burned-out on violence. Neither of them has any trust left to give.
If the best of the FBI couldn't protect her from the country’s most notorious assassin, does a burned-out small town cop have a prayer?