Killer Instinct

In 1993, 18-year-old Tricia Pacaccio was brutally murdered outside her family home in Illinois, and suspicion fell on someone disturbingly close to her family. But the case went unsolved, and the suspected killer eventually moved to Los Angeles, where his deadly obsession with yo ...  Show more

When Myriam and Robert Dienes were found shot to death at their Florida home, investigators quickly turned their attention to Myriam’s 21-year-old daughter, Nicole Nachtman. But as detectives questioned Nicole, the case took an increasingly bizarre turn when she began talking abo ...  Show more

Thomas Randolph had been married six times, but only two of his wives were still alive. When his sixth wife, Sharon Causse, was shot and killed during what appeared to be a home invasion, Randolph claimed he had discovered her body and killed the intruder in self-defense. But inv ...  Show more

Amanda Taylor had long fantasized about murder and dreamed of one day becoming a serial killer. After the death of her husband, Rex, her obsession took a terrifying turn when she blamed his father, Charlie Taylor, for the loss. In 2015, Amanda and an accomplice brutally murdered ...  Show more

When rising fashion designer Sylvie Cachay was found dead in a bathtub at New York City’s exclusive Soho House, suspicion quickly fell on her millionaire boyfriend, Nicholas Brooks. The son of disgraced Academy Award-winning composer Joseph Brooks, Nicholas had been staying with ...  Show more