On February 24, 1986, 29-year-old newlywed Sherri Rasmussen was murdered in the home she shared with her husband, John. The crime scene suggested a ferocious struggle, and police initially assumed it was a burglary gone awry. Before her death, Sherri had confided to her parents that an ex-girlfriend of John's, a Los Angeles police officer, had threatened her. The Rasmussens urged the LAPD to investigate the ex-girlfriend, but the original detectives...