When Push Comes To Shoot
Koontz, Rena Emma Hunter's tyrannical brother deserved to die, even if the manner of his murder was horror-movie gruesome. As a police lieutenant, she's duty-bound to provide whatever assistance she can in hunting down her brother's killer, but she doesn't mourn his loss. Business acquaintances, former friends, and even his relatives agree the world is better off without the despicable bully.
With no clues and too many suspects, it looks like the murderer ...