Eye for an Eye - The McAlister Chronicles Book 1, #1

It's not about revenge. It's about justice. After he was shot in Iraq, his wife convinced him it was time to retire. Mac came home from his final deployment with a plan. He was finally going to take it easy and enjoy time with his family. His wife was excited to have him home, and they talked about their plans for retirement, but all their plans came to a halt one fateful day. Mac sat in a doctor's office listening to the word cancer play over and over in his mind, and just a few short months later, he was burying his wife.  He barely had time to even begin to recover when he got the call that his daughter Anna had been found on the roadside near dead.
She had been savagely attacked and life-flighted to a hospital in Norfolk. Mac's world started to unravel. He sat next to his daughter in the ICU and watched her fight for her life. Mac had lost his wife to cancer. He was not going to lose his baby girl too.  The police don't seem to be doing their job, leaving Mac no choice but to seek justice the old-fashioned way...an eye for an eye.