Who is allegedly behind the murder-for-hire plot according to police?

According to the police investigation, the arrests of Shaw and Johnson appear to be just the beginning of this case. Law enforcement officials allege there was a mastermind behind the scenes who was orchestrating the entire murder plot. Investigators believe this unidentified person was 'pulling the strings' of the plan to murder, suggesting a more complex conspiracy than initially apparent. The police indicate that Sammy Schaefer was likely the mastermind, motivated by jealousy and personal grievances stemming from a contentious divorce situation involving his wife's relationship with the victim, Portia Rowland.