Unwilling Accomplice — Melanie Atkins

Marcy Moretti believes anyone can be redeemed until she witnesses a murder at the hands of her cruel ex-husband and is forced to go on the run in the Big Easy with her young son in tow in order to survive.
Her ex has turned so many people against her, she's afraid to trust anyone except Joe Riso, her former brother-in-law, a troubled detective staggered by the loss of his own wife and daughter when a case goes awry.
If Joe is going to protect Marcy and her boy, he must first find a way to unfreeze his icy heart. Part of him died the day Emily and little Amber went down in a hail of bullets, and he has yet to pull himself out of the quagmire of grief he's lived in ever since.
The danger surrounding Marcy brings his cop instincts back to the surface, however, and when he finally gives in and sacrifices his own freedom to keep her and her son safe, he also finds his own redemption.