What are the allegations against Matthew Farwell?

Matthew Farwell is accused of a disturbing pattern of predatory behavior toward Sandra Birchmore, allegedly beginning when she was only 13 years old. According to the allegations, he groomed her from this young age and engaged in sexual relations with her while she was underage. The accusations escalate to claim that after getting Sandra pregnant, Farwell murdered her and attempted to stage her death as a suicide. The case has advanced to federal court, where evidence including text messages has revealed the manipulative nature of their relationship and raised serious concerns about potential involvement of law enforcement in the situation.