Mother by Reginald Andre-Estime

The book is about a group of enhanced killers called EVOs, who was created by Mother to be the next stage of human evolution. They soon found out that was not the case when Mother abandon them into the world. As adults, they vow to find Mother and pay her back for her betrayal at any cost. Myra set the plans in motion by starting a massacre to get Mother's attention and also dragging detective Alice and Richard into the flames of vengeance. Will Myra and her Evos brothers find Mother before Alice and Richard can stop their killing spree?