When a police detective's wife is found dead, he becomes the prime suspect. This gripping true crime documentary, "The Detective's Wife," unravels the mystery surrounding Amy Fanion's death, exploring her husband Brian's suspicious internet searches and a shocking letter of support from her own family. Watch the full episode, then join 48 Hours producers for an exclusive post-mortem revealing shocking interview audio and answering burning questions about this perplexing case. Prepare to be captivated by twists, turns, and a story that will leave you questioning everything.