Gloria Choi, a young single mother from Washington, had a chance meeting that led to what appeared to be a dream romance. Her new boyfriend, Billy Rickman, showered her with attention, convincing those around her that he was deeply devoted. But investigators would later uncover a far more troubling reality. As police pieced together what was real and what was deception, the investigation revealed how the relationship spiraled into violence and ended in murder

In 2002, 48 HOURS correspondent Erin Moriarty covered the case of New York nurse Ted Maher who was convicted in the arson death of a billionaire in Monaco. Twenty-four years later, Maher had reinvented himself – changed his name to Jon Green – but was now accused of putting a hit out on his wife, Dr. Kim Lark, in New Mexico. Prosecutors say Green was locked up for forging his wife's name on checks and stealing her dogs when he paid a jail mate to murder her. Erin Moriarty spoke with the man who claims Green hired him. The man says Green instructed him to hold a gun to the head of one of Dr. Lark's dogs and force her to drink fentanyl-laced water. Green denies the charges.