Betrayed

Alec Johnson was betrayed in the worst possible way.
He thought he had it all. He had his faith, he had his family, he had been immensely successful in his work life. When he thought his wife had betrayed him, everything began to fall apart. Did that betrayal cause him to do the unthinkable? Did Alec Johnson murder his wife in a jealous rage when she confessed her affair? His boss Detective Sergeant Joe Turner certainly thinks so and Alec finds himself in the depth of despair. He is in the very watch-house cell he had placed many others previously, his career in tatters. His son was missing. His faith was threatened.
And the big question remained.
Who killed Lucy Johnson?