In the Black by Cynthia Rayne

A Hero’s Scars

Former Navy SEAL, Quentin Zane, was battle-scarred long before he joined the military. As a child, his father put him through hell. One terrible night, he lost everything. Since then, the only bright spot in his life has been Ellie King. And he’ll stop at nothing to protect her, even if it means unleashing the blackness within.

Broken but determined

After many false starts, Ellie finally left her abusive boyfriend and fled to her brother’s place. But her ex is hatching a plan to kill innocent people, and she has to stop him.
With Zane’s help, she’ll put him behind bars. Ellie’s known her big brother’s best friend for years, but she’s never truly seen Zane before. Will they stop a madman from killing? And will they heal each other’s wounds?