04 - Sin In Their Blood by Ed Lacy

Despite his notorious reputation as the toughest private eye in town, Matt swears hes not looking for trouble. Hes changed since his days fighting in Korea. But trouble seems to find him naturally, especially on the night he stumbles upon a dead blonde. Someone isnt happy about him being there and they make it known. When Matt realizes a girl he cares for is being threatened by the same killer, he doesnt wait for trouble to find him. He takes matters into his own hands, with hate in his heart and a .45 in his grip. Beware trouble, because this time, Matt Ranzino is coming for you. - Adapted from the back cover of the first edition.