The Killer Who Wasn't There by Bill A. Brier
The Killer Who Series ~ Book 2
A chilling locked-room mystery! Impossible for the murderer to escape…yet, he did.
Powerful officials conspire against Chief Bucky’s attempt to solve the case, including the KKK, whose members particularly resent Bucky’s friend, Charlotte, a Harvard-educated “Negro” lawyer. When they drag her off to a hanging—her hanging—Bucky reaches the end of his rope.