Author Karsten Dusse’s new novel, “My Inner Child Wants to Kill,” is a worthy successor — and sequel — to his previous, extremely successful work, “Murder Mindfully.” Both novels in the “Mindful Murder” series feature protagonist Bjorn Diemel, lawyer to several men of questionable honesty and character; his wise and clever therapist, Joschka Breitner; several of Bjorns gangster clients; and Bjorn’s estranged wife Katharina and their beloved child, Emily. Bjorn had committed two murders in the first novel, both victims murdered mindfully, mind you, and both necessarily eliminated because if he hadn’t murdered them, they would certainly have killed him. He has also managed to capture another killer and to keep that one in a cell in his basement. Better than killing a third person, we suppose. In any case, he has promised himself never to kill again.