Pray for the Dying (Bob Skinner series, Book 23)

'After what happened, none of us can be sure we're going to see tomorrow.' The killing was an expert hit. Three shots through the head, as the lights dimmed at a celebrity concert in Glasgow. A most public crime, and Edinburgh Chief Constable Bob Skinner is right in the centre of the storm. The shooters were killed at the scene, but who sent them? The crisis finds Skinner taking a step that he had sworn he never would. Tasked with the investigation of the outrage, he finds himself uncovering some very murky deeds...The trail leads to London, and a confrontation that seems too much, even for him. Can the Chief solve the most challenging mystery of his career...or will failure end it?