Raymond Fernandez was one half of the lonely hearts killers. Along with Martha Beck Fernandez was responsible for the murders of as many as 20 women. Fernandez had been indulging in criminal activity prior to meeting Beck, having contacted women through lonely hearts ads, and used this as an opportunity to steal jewellery, money and checks after he had seduced them and gained there trust. This was how he met Martha Beck, however when he told her of his criminal enterprise she immediately became a willing participant. Despite her willingness to participate in criminal activity, she found it incredibly difficult to see Fernandez seducing women, and fuelled by jealousy began killing women that Fernandez become involved with.